Timeline

==BCM = Before Creation of Moon==
* Year 40,000 BCM: Otsutsuki Yoshiko is born
** Yoshiko is born around this time.
* Year 10,000 BCM: Otsutsuki Yoshiko awakens the Rinnegan
** Notes: None
* Year 1035 BCM: Otsutsuki Hagoromo and Otsutsuki Hamura are born
** Notes: Conjectural; Here I estimate Hagoromo and Hamura to be approximately 35 at the time of sealing Kaguya (see Year 1000 BCM) based on the changes in Hagoromo’s appearance between his young adult design and his middle-aged design. Notably, the difference in Hamura’s appearance isn’t as drastic.
* Year 1000 BCM: Otsutsuki Hagoromo awakens the Rinnegan; Otsutsuki Hamura and Hagoromo challenge their mother Kaguya 
** Notes: According to the anime in Naruto Shippuden Episode 462, the battle between Kaguya and her sons takes place over a number of months. Notably, Kaguya would theoretically have to have already been pregnant during this time in order to give birth by the fight’s end. 
*** Known confilcts: Otsutsuki clan internal strife 
* Year 1000 BCM: Black Zetsu is born; Kaguya is sealed with Chikabu Tensei; Hamura begins guarding their mother’s seal; at some point prior to this, Kaguya performs the Infinite Tsukuyomi 
** Characters: Hagoromo and Hamura age - 35
** Notes: Approximately 1000 years pass between Zetsu’s birth and Hashirama and Madara becoming clan leaders and Konoha founders. In it is suggested that Kaguya’s process of performing the Infinite Tsukuyomi was prolonged over a number of years. Hagoromo describes this time period as a “few thousand years”, but as Zetsu was physically present and provides a more precise timeline, I use the former description. 
* Year 995 BCM: Otsutsuki Indra is born
** Characters: Hagoromo age 40
** Notes: According to the anime, Hagoromo spends a few years repairing the land and teaching ninshu to his disciples after his sealing of Kaguya (Episode 464). I estimate this period of time to be approximately five years, as neither he nor the people around him appear to have aged more than 15 years by the time Indra is 10. 
* Year 994 BCM: Otsutsuki Ashura is born 
** Characters: Hagoromo age 41; Indra age 1
** Notes: Based on the fact that Indra appears to be approaching the size of a toddler when Ashura appears to be several months old in Episode 464, and yet by age 10 their heights are nearly the same, I estimate the difference between their ages to be approximately one year. 
* 'Year 985 BCM: Otsutsuki Indra' invents ninjutsu and awakens the Sharingan
** Characters: Hagoromo age 50; Indra age 10; Ashura age 9
** Notes: According to the anime, Indra is the originator of hand signs to channel chakra, and he does so at the age of 10 (Episode 465). During this same year, he is depicted as having a sharingan. These developments are in line with descriptions of his prodigious skill (Chapter 670). 
* Year 974 BCM: Otsutsuki Ashura is named successor of ninshu; Otsutsuki Indra rejects the decision and leaves his clan
** Characters: Hagoromo age 61; Indra age 21; Ashura age 20
** Notes: Assuming that Hagoromo waited until both of his sons were adults, the most likely age for him to decide a successor would be close to the time of Ashura’s twentieth birthday. 
*** Known conflicts: Otsutsuki clan internal strife
* Year 944 BCM: Otsutsuki Hagoromo dies; Yoshiko buries Hagoromo in an unnamed location
** Characters: Hagoromo age 91; Indra age 51; Ashura age 50; Yoshiko age 106
** Notes: At the time of Hagoromo’s death, Indra and Ashura appear to have aged several decades, and Ashura is depicted as having children who appear somewhere between their older teen age and adulthood (Episode 468). Thus, I estimate the time that elapses between Indra’s rejection and Hagoromo’s death to be approximately 30 years
.
* Year 943 BCM: Yoshiko Otsutsuki obtains immortality
** Characters: Yoshiko age 89
** Notes: After the death of Hagoromo, Yoshiko made a deal with the shinigami to obtain immortality.
* Year 943 BCM: Black Zetsu alters the Otsutsuki (Uchiha) stone tablet 
** Characters: Zetsu age 56
** Notes: Zetsu alters the Hagoromo’s message for his descendants sometime after his death (Chapter 681). Given that Zetsu’s first attempt to revive Kaguya was through manipulating Indra, it can be assumed this event took place quite soon after Hagoromo died. Interestingly, there is no clear explanation for why Zetsu appears immortal (or at the very least possessing a lifespan of thousands of years without aging) while Hagoromo appears to die of natural causes in a normal human lifespan. There is also no explanation of how and when the clan lineage transfers from the name Otsutsuki to the name Uchiha. 
* Year 400 BCM: Tomoe Gozen is born 
** Notes: None
==ACM = After Creation of Moon==
* Year 47 ACM: Uchiha Tajima is born 
** Notes: According to the Fourth Data Book, Tajima is 42 at the time of his death. His year of death is estimated based on the relative age difference between Tajima and his adult sons. Although in the manga he appears to be older than 34 when Madara awakens the Sharingan, as 42 is his canonical death age, he cannot have been older than his mid-30s. Hashirama’s statement in Chapter 622 that as he grew up, lifespans were around 30 years supports the idea that Tajima had his children relatively young. Although there is no apparent age for Butsuma, it can be assumed that their ages would be relatively close. 
* Year 35 ACM: Kazekage Reto is born 
** Notes: During the First Five Kage Summit in Chapter 648, I estimate Reto to be approximately ten years older than Hashirama, as he most closely resembles other characters depicted in their early 40s. As his age at his time of death is 58, his life thus spans until Year 23 in the Konoha Era (see this timeline).
* Year 27 ACM: Senju Toka is born 
** Notes: Toka, one of the members of the Senju clan in the warring states era and Hashirama’s aide, is established as having been 27 around the time of Konoha’s founding by Third Data Book. 
* Year 25 ACM: Senju Hashirama, Uchiha Madara, Uzumaki Mito and Uchiha Hikaku are born
** Characters: Tajima age 22
** Notes: Hashirama and Madara’s age relative to the founding of the village is conjectural (see Year 0 of this timeline). I am also assuming that Mito and Hashirama are the same age. Hikaku, one of the members of the Uchiha clan in the warring states era, is established as having been 25 around the time of Konoha’s founding by the Third Data Book. 
* Year 24 ACM: Senju Tobirama and Uchiha Izuna are born 
** Characters: Tajima age 23; Hashirama and Madara age 1
** Notes: Here I suppose one year age gap between Hashirama and Madara and their respective brothers. According to the data books, Izuna was approximately 24 when he died, and his death was proceeded by the founding of Konoha.
* Year 22 ACM: Senju Itama is born
** Characters: Tobirama age 2; Hashirama age 3
** Notes: Based on his manga appearance, I estimate an age difference between Itama and Tobirama of approximately two years.
* Year 20 ACM: Senju Kawarama is born
** Characters: Itama age 2; Tobirama age 4; Hashirama age 5
** Notes: According to Chapter 622, Kawarama was 7 years old at the time of his death. Based on Hashirama’s appearance at this time, I approximate Hashirama to have been 12, suggesting a five year age gap.
* Year 13 ACM: Senju Kawarama dies as a result of a battle between the Uchiha and Hagoromo clan
** Characters: Kawarama age 7; Itama age 9; Tobirama age 11; Hashirama age 12
** Notes: All ages are conjectural except Kawarama’s, which is supported by the manga, anime, and data books. 
*** Known conflicts: Uchiha clan vs. Hagoromo clan
* Year 13 ACM: Senju Itama dies in battle against the Uchiha clan
** Characters: Itama age 9; Tobirama age 11; Hashirama age 12
** Notes: According to Chapter 622, Itama dies sometime in the months following Itama’s death. 
*** Known conflicts: Senju clan vs. Uchiha clan
* Year 13 ACM: Uchiha Madara awakens the Sharingan
** Characters: Madara age 12
** Notes: Madara awakens the Sharingan when he is an adolescent boy facing off against Hashirama, thus dating this event.
* Year 10 ACM: Kakuzu is born 
** Notes: According to the data books, Kakuzu is 91 during his appearance in Part II. As roughly 81 years elapse in the interim between Konoha’s founding and Kakuzu’s death (see this timeline), it is likely that he was born ten years prior to its founding. 
* Year 5 ACM: Uchiha Tajima dies; Uchiha Madara becomes Uchiha clan leader 
** Characters Tajima age 42; Madara age 20; Izuna age 19
** Notes: Hashirama and Madara both appear to be fully grown adults by the time they both become their respective clan leaders in Chapter 624. It is likely that Tajima’s death precipitated this event. According to the data books, Tajima dies at age 42, and thus I estimate the difference between Tajima and his eldest son to be approximately twenty-two years. 
* Year 0 ACM: Uchiha Izuna dies by Senju Tobirama’s hand
** Characters: Tobirama age 24; Hashirama and Madara age 25
** Notes: Izuna dies sometime not long before Konoha’s founding at age 24.
* Year 0 ACM: Yamagakure is founded; village system established 
** Characters: Ōtsutsuki Yoshiko age 10,000+
* Year 0 ACM: Konohagakure is founded; village system established 
** Characters: Hashirama and Madara approx. age 25
** Notes: Konoha is founded in the years following Izuna’s death, who is approximately 24 when he dies. Madara and Hashirama both appear to be 1-2 years older than their siblings based on their appearances as children.
* Year 3 ACM: Akimichi Torifu is born
** Notes: According to the data books, Torifu is 30 at the time of his first Part II appearance in Chapter 481, thus dating his birth. Notably, this age would suggest he is a few years older than his teammates given that Kagami only lives until the age of 25. It is likely that he was among the first of the children born in Konohagakure, which is in keeping with the high status of the Akimichi as one of the four noble clans of the village. 
* 'Year 5 ACM: Uchiha Madara defects from the village; Uzumaki Mito becomes Kyubi jinchuriki'
** Characters: Madara and Hashirama approx. age 30
** Notes: Highly contradictory/conjectural; it is entirely possible that Madara stayed in the village for a much shorter (or longer) time than this, but I’m assuming based on the degree of development we see in Konoha while Madara is still there that he was there for at least a few years. This date is assumed because of Mito giving birth some time after this event, and that most shinobi (especially clan heads) would be having their first kid by 30ish at latest since life-spans were shorter (Hashirama stating that as he grew up, lifespans were around 30 years in Chapter 622). It is stated that Mito sealed the Kyubi within herself in order to change the tide during Hashirama and Madara’s final battle (Chapter 500). However, Onoki has a confrontation with Madara around the time of his defection (Chapter 562). Since Onoki is 25 years older than Tsunade, he should technically be among Tsunade’s parents cohorts, and therefore have been born around this time, rather than being old enough to confront Madara. Assuming Onoki was at least 12 at this time, this would force Onoki’s age up to the same as Kakuzu’s instead of 79 as stated.
*** Known conflicts: Konoha internal strife 
* Year 5-6 ACM: Senju Hashirama and Uzumaki Mito’s child is born
** Characters: Hashirama and Mito approx. age 30-31
** Notes: Since Mito was a jinchuriki during her pregnancy, it seems likely that the sealing would predate the pregnancy. 
* Year 7 ACM: First Five Kage Summit convenes; Tailed Beasts are distributed among the nations 
** Characters: Hashirama and Mito age 32; Tobirama age 31
** Notes: The sealing of the Kyubi/Nine-Tails inside of Mito after Hashirama’s battle with Madara sets the precedent in the Five Great Nations for sealing away Tailed Beasts, as noted in Chapter 500 when Kushina refers to Mito as the first Kyubi jinchuriki. It can be supposed that the subsequent sealing of Tailed Beasts occurred not long after, so as to maintain the power balance as best as possible when Hashirama offers the Tailed Beasts to the other nations (Chapter 648). 
* Year 7 ACM: Shimura Danzo and Chiyo are born 
** Notes: Danzo is 1-2 years older than Hiruzen. Chiyo and Danzo are both approximately the same age, according to the data books. Chiyo is the first known birth in Suna history. 
* Year 8 ACM: Sarutobi Hiruzen and Ebizo are born
** Notes: Hiruzen is 18 years older than his students according to data book entries, so based on the relative birth date of Tsunade, he is born in Year 8. Ebizo is 1 year younger than Chiyo. 
* Year 9 ACM: Utatane Koharu and Mitokado Homura are born 
** Notes: Koharu and Homura are 1 year younger than Hiruzen according to the data books.
* Year 10 ACM: Sarutobi Biwako is born 
** Notes: According to the data books Biwako is 55 at the time of the Kyubi’s attack, thus dating her birth.
 
* Year 19 ACM: Hatake Sakumo and Tazuna are born
** Notes: Sakumo’s age is conjectural based largely on the difference in appearance between himself and Kakashi in Pain’s Assault arc (Chapter 425). He appears to be significantly older than Kakashi, with eyes characteristic of those in the series in or approaching their 40s. However, he also claims that he and Kakashi both died young (Chapter 449) so their ages were likely still within a ten year range. By this timeline, he would be 38 at the time of his death. This is also compatible with the statement in Chapter 240 that implies his “time” or peak, might have been slightly prior to the Sannin, who were prodigies in their own right. However, anywhere from Year 17 to Year 22 could prove within an acceptable range for his birth. According to the earlier data books, Tazuna is approximately 51 years older than his grandson. Although the Fourth Data Book claims that he would be 64 in Part II, as 5 years could not possibly have passed between Parts I and II, this can be ignored. 
* Year 20 ACM: Yuhi Shinku, Umino Ikkaku and Umino Kohari are born
** Notes: According to the data books all three characters are 45 at the time of the Kyubi’s attack, thus dating their births.
* Year 23 ACM: First Kazekage Reto is killed by assassins; Shamon becomes Second Kazekage 
** Characters: Reto age 58
** Notes: According to the Third Data Book, all Kazekages prior to Gaara are killed by assassination, and according to the Fourth Data Book, Reto’s age at the time of his death is 58. I estimate him to approximately ten years older than Hashirama during the summit, which means his death would take place approximately sixteen years later.
* Year 26 ACM: Tsunade, Jiraiya and Orochimaru and Kato Dan are born
** Notes: Assuming that Tsunade’s parents were at least the age of majority (20), then the earliest possible year she could’ve been born is Year 26. Her fellow students are all the same age according the the data book entries. Dan Kato’s birth year is estimated based on his death, as he died at age 27 during the Second Shinobi war which started approximately in the Year 52-53 (see points on Second and First Shinobi War for explanation).
* Year 27 ACM: Maito Dai is born 
** Notes: Dai is 35 at the time of his death according to the data books, and thus his year of birth can be determined by subtracting from his point of death during the Third Shinobi War in Chapter 668. (See Year 62 for elaboration.) Had he lived, he would have been one year younger than the Sannin. 
* Year 30 ACM: Senju Nawaki is born; Senju Hashirama dies (at some point surrounding this event, Senju Tobirama becomes Hokage)
** Characters: Hashirama age 55; Tobirama age 54
** Notes: Here I pose a four-year age difference between Tsunade and Nawaki. Nawaki is 12 when he dies (Chapter 160), and Tsunade looks to be an older teenager (16-18). As for dating Hashirama’s death, in his memory of Tsunade (Chapter 619) she looks no older than five. It is unknown if Tobirama was named Hokage before his brother died or not. 
* Year 32 ACM: Uchiha Fugaku is born
** Notes: Fugaku is 40 at the time of the Uchiha Massacre, which dates his birth around this time.
* Year 33 ACM: First Shinobi War; Senju Tobirama dies at the hands of Kinkaku’s battle unit; Sarutobi Hiruzen becomes Hokage
** Characters: Tobirama age 55; Hiruzen age 25; Danzo age 26; Torifu age 30
** Notes: Given Danzo and Hiruzen’s significantly youthful appearances in the First Shinobi War (Chapter 481), I would place them at no older than 25. However, since Minato’s age when he was named Hokage was considered somewhat notable (approx. 23) then I would assume that Hiruzen would’ve been at least a couple of years older. Although his students would’ve graduated the year prior, the war team formations suggest that Hiruzen did not take his own students on until after he became Hokage. According to the data books, Torifu is 30 years old at the time of his debut.
*** Known conflicts: Konoha v. Kumo (Second Raikage’s reign)
* Year 32-33 ACM: Senju Tsunade, Jiraiya and Orochimaru graduate from the Academy; First Shinobi War Ends; Team Hiruzen is formed
** Characters: Tsunade, Jiraya and Orochimaru age 6-7; Hiruzen age 24-25
** Notes: According to the data books, Team Hiruzen all graduated at the age of 6. Being that most of the eligible sensei including their own would’ve been off fighting the First Shinobi War, it’s possible there was a slight delay in team assignments this year. Given that Hiruzen is approx. 18 years older than his students, he would have been teaching them at age approx. age 24-25. Though Hiruzen does look older than his early 20s in Chapter 139 during their bell test, for the sake of reconciling the chronology of events and the Sannin’s graduation ages, we can assume the First Shinobi War ended shortly before Team Hiruzen was formed, as a Hokage actively fighting a war would is unlikely to take on a genin team. 
* Year 34 ACM: Uchiha Hazuki is born
** Hazuki, Uchiha Izumi’s mother, is stated to be two years younger than Fugaku, thus dating her birth.
* Year 35 ACM: Teuchi is born 
** Notes: According to the data books, Teuchi is 43 during the events of Part I, thus dating his birth. There is a contradiction between this and his listed Part II age, which is 47, because 4 years could not have passed during that time. However, here I choose his age at the time of his introduction. 
* Year 37 ACM: Hyuga Hiashi, Hyuga Hizashi and Uchiha Mikoto are born''''''
** Notes: Hiashi is 3 years older than Team Ino-Shika-Cho according to the data books. As they are twins, Hizashi was born at this same time. Mikoto is 35 at the time of the Uchiha Massacre according to the data book entries, which dates her birth around this time.
 
* Year 38 ACM: Kazekage Rasa is born 
** Notes: Rasa is 40 at the time of his death in Part I, according to the data books. This information dates his birth at this time. 
* 'Year 39 ACM: Aburame Shibi is born'
** Notes: Shibi is 1 year older than Team Ino-Shika-Cho.
* Year 40 ACM: Akimichi Choza, Yamanaka Inoichi and Nara Shikaku are born 
** Notes: Team Ino-Shika-Cho are 38 in Part I according to the data books. 
* Year 41 ACM: Namikaze Minato and Uzumaki Kushina are born
** Notes: Minato and Kushina were 24 years old at the time of their deaths, and thus dating their births. If they had lived, they would have approximately 36-37 for the events of Part I. 
* 'Year 42 ACM: Senju Nawaki dies; Nara Yoshino and Inuzuka Tsume are born'
** Characters: Nawaki age 12; Tsunade age 16
** Notes: Nawaki dies shortly after he is given Hashirama’s necklace on his 12th birthday. Tsunade’s age at the time of Nawaki’s death is conjectural, but fits well within the constructed timeline. Yoshino and Tsume are both 2 years younger than Ina-Shika-Cho.
 
* Year 44 ACM: Killer Bee is born
** Characters: A (Fourth Raikage) age 11
** Notes: Killer Bee is one year older than the Ame Orphans. 
* Year 45-46 ACM: Namiashi Raido, Uzumaki Nagato, Konan, Yahiko and Sasori are born
** Notes: Jiraiya is 19 years older than his students according to data book entries. Sasori and Raido are both the same age as the Ame Orphans, according to the data books.
* Year 46 ACM: Yamashiro Aoba is born
** Notes: Aoba is 1 year younger than Raido and 1 year older than Genma according to the data books. 
* Year 47 ACM: Shiranui Genma is born 
** Notes: Genma is 2 years older than Obito and the others born that year, according to the data books, and 3 years older than Gai.
* Year 47 ACM: Ichiraku Ramen opens 
** Characters: Teuchi age 12-13
** Notes: According to the Third Data Book, Ichiraku Ramen has been in business for 34 years as of Part II (p. 109), thus dating its opening. Teuchi would have been approximately 12-13 at this time, suggesting that he inherited the business from a mentor or relative. 
* Year 48 ACM: Hoshigaki Kisame and Ebisu are born
** Notes: Ebisu and Kisame are both 1 year older than Obito and the others in his class, according to the data books. Ebius is also 2 years older than Gai and several months to a year younger than Genma. 
* Year 49 ACM: Uchiha Obito, Nohara Rin, Sarutobi Asuma, Yuhi Kurenai, Shizune, Terumi Mei and Tsunami are born; at some point prior to this, Sarutobi Asuma’s sibling is born 
** Characters: Shinku age 29; Tazuna age 30; Biwako age 39; Hiruzen age 41
** Notes: It is highly likely that Kakashi’s classmates would’ve been older than him, because of his young graduation from the academy (age 5); combined with the data book entries which suggest that the majority of this class is aged 31 throughout Part II while Kakashi’s age has a range beginning with age 29. Mei is 31 at the time of her introduction. Tsunami, Inari’s mother and Tazuna’s daughter, is in this same approximate age range, being 29 in Part I. The ages of Asuma’s parents at the time of his birth can be determined based on the respective age differences between them according to the data books. The same principle applies to Kurenai’s father, Shinku and Tsunami’s father, Tazuna. As Asuma would’ve been 20 when his nephew was born, his sibling would have to be older than him in order to be past the age of majority when they had Konohamaru.
* Year 49 ACM: Motoi’s father is killed; Blue B dies in Hachibi extraction; Killer Bee is chosen as Kumo’s jinchuriki
** Characters: Motoi and Killer Bee age 5; A (Fourth Raikage) age 16; Blue B age 22 
** Notes: Chapter 494 establishes the timeline for the previous Hachibi jinchuriki’s death and subsequent sealing, noting that Motoi and Bee are 5. Blue B’s age at this time is established in the Fourth Databook. 
* Year 50 ACM: Uzumaki Kushina arrives in Konoha 
** Characters: Mito age 76; Kushina age 9
** Notes: Kushina was sent to Konoha to become the next jinchuriki and enrolled into the Academy, where Minato was also in attendance (Chapter 498). Considering that Minato graduates the Academy at 10 according to the data books, Kushina’s arrival places her at age 10 or below upon arrival in Konoha. Assuming Kushina had at least one year of education at the Academy, she was 9 when she arrived. Mito’s age at this time is conjectural based on closeness in age to Hashirama (see Year 5). 
* Year 50 ACM: Maito Gai and Morino Ibiki are born 
** Characters: Dai age 23
** Notes: Gai is closer to Kakashi’s age than his other cohorts. Ibiki is one year older than Kakashi during the events of Part I. Dai’s age at this time can be determined based on the fact he is 35 when he dies (see Year 62). 
* Year 50 ACM: Hatake Sakumo fucks an alien 
** Notes: Kishimoto you did this to yourself.
* Year 51 ACM: Hatake Kakashi, Momochi Zabuza and Samui are born; Namikaze Minato graduates from the Academy; Hatake Sakumo kills Sasori’s parents; at some point prior to this, Third Kazekage’s reign begins 
** Characters: Sasori age 5-6; Minato age 10; Sakumo age 32
** Notes: Kakashi is approximately 10 years younger than Minato according to data book entries. Zabuza and Kakashi are the same age during Part I. Samui is also within a year of Kakashi’s age. Based on his size and the fact he is not yet a genin, Sasori must be less than 7 years old (his academy graduation age) at the time of his parents’ death. Here, I estimate him to be approximately close to age 5. Sakumo’s age at this time is conjectural based on his manga appearances (see Year 19). Additionally, I posit that it makes narrative sense for the Third Kazekage to have been reigning during the death of Sasori’s parents, as it would make Sasori’s motives for attacking him more personal. 
*** Known conflicts: Konoha v. Suna (Third Kazekage’s reign). 
* Year 52 ACM: Mitarashi Anko, Hagane Kotetsu and Kamizuki Izumo are born
** Notes: Anko is 3 years younger than than Asuma and Kurenai, thus dating her birth in the the Year 52. Kotetsu and Izumo are the same age as Anko. 
* Year 52-53 ACM: Second Shinobi War begins; Tsunade develops her Yin seal; Hanzo names Sannin, 'Jiraiya remains in Ame'''''''
** Characters: Jiraiya, Orochimaru and Tsunade age 26; Nagato, Yahiko and Konan approxmiately age 7
** Notes: The Second Shinobi war supposedly takes place 20 years after the first (Second Naruto Fanbook, Kai No Sho). Additionally, at some point during this war, Tsunade develops her Yin seal, as during Chapter 160 during some stage of the war she is seen without it, but it is very likely that she had it behind her forehead protector during her combat in Ame (Chapter 446), and it is unlikely she would develop a combat-oriented seal after Dan’s death gave her a fear of blood (Chapter 160).  
*** Known conflicts: Konoha v. Ame (Hanzo’s reign)
* Year 53 ACM: Sasori graduates from the Academy
** Characters: Sasori age 7
** Notes: According to the data books, Sasori graduates from the Academy at the age of 7, twenty-eight years prior to the events of Part II. 
* Year 53 ACM: Uzumaki Mito dies; Uzumaki Kushina becomes the Kyubi jinchuriki; Kumo makes failed attempt to kidnap Uzumaki Kushina
** Characters: Mito age 79; Kushina and Minato age 12
** Notes: According to the data books, Kushina was around the age of 12 at the time of Kumo’s kidnapping attempt, and their purpose was to gain control of the Kyubi, meaning that she was made a jinchuriki at some point between the ages of 9-12. Based on her appearance, I would place her the upper end of that range when she speaks to Mito just before becoming a jinchuriki (Chapter 500). Mito’s age at this time is conjectural based on closeness in age to Hashirama (see Year 5). 
*** Known conflicts: Konoha vs. Kumo (Third Raikage’s Reign)
* Year 53 ACM: Kato Dan dies; Tsunade develops a fear of blood and retires from active combat/medicine
** Characters: Dan and Tsunade age 27
** Notes: Since Dan died at the age 27, he died during the Second Shinobi War in the Year 53. Interestingly, Shizune would’ve been only 4 when he died, and he died after his sister, so it’s very likely that after this point Shizune was either raised by her father or without family. 
* Year 54 ACM: Yamato/Tenzo, Umino Iruka, Gekko Hayate, Uchiha Shisui, 'Darui, Cee' and Utakata, are born
** Characters: Ikkaku and Kohari age 34
** Notes: Yamato is approximately 3 years younger than Kakashi, given that Kakashi starts Part II off at age 29 where Yamato starts it off at age 26. Though the anime filler would place this age difference closer to 4 years, given the earlier supposition about Kakashi’s age (see Year 49), 3 years seems a better approximate. Iruka is the same age as Yamato, and his parents Ikkaku and Kohari are 34 years older than him. Utakata is also the same age as Yamato. Although Hayate dies during the events of Part I, he is within a year of Iruka’s age at the time. Shisui’s age is conjectural based on his relative size and youth compared to Itachi in the anime adaptions and light novels. 
*** Elaboration: Shisui is described in Itachi Shinden as “clearly older than Itachi” as well as already a genin by the time of their meeting, which suggests a difference of at least a few years. Combined with the fact that Shisui gains the nickname “Shisui of the Body Flicker” when Itachi is 6, I assume that Shisui would be no younger than 11 when this occurred. However, since the difference in their sizes isn’t as drastic as the difference between Itachi and Sasuke, the age gap between them is likely no more than 5 years. In the same novel, Shisui is the primary breadwinner of his household by the Itachi is 8, which also supports this kind of age difference, since he would be 13 (a teenager) by that time. 
* Year 54 ACM: Sasori becomes a Chunin 
** Characters: Sasori age 8
** Notes: According to the data books, Sasori becomes a Chunin at the age of 8. 
* Year 55 ACM: Uzuki Yugao is born 
** Notes: According to the data books, she is 4 years younger than Kakashi as of Part I, and 1 year younger than Hayate at the time of his death. 
* Year 55 ACM: Jiraiya returns to Konoha from Ame and becomes Minato’s teacher; Second Shinobi War ends
** Characters: Jiraiya age 30; Minato age 14; Yahiko, Konan and Nagato age 10
** Notes: Since Jiraiya identified Nagato as the first Child of Prophecy, the Ame Orphans necessarily predate the Team Jiraiya that Minato was placed on. Jiraiya taught in Ame for 3 years before returning to Konoha, which means he couldn’t have taught Minato until three years after the Second Shinobi War had begun, placing Minato at age 14. It is unclear at what point the Second Shinobi War ended, though the implication made in the Second Naruto Fanbook is that conflict flowed from the Second Shinobi War to the Third Shinobi War without pause, so there you can assume that the next war was declared within several months to a year of the Second ending.
* Year 56 ACM: 'Third Shinobi War begins;' Yakushi Kabuto is born; Hatake Kakashi graduates from the Academy
** Characters: Kakashi age 5
** Notes: Kabuto is approximately 30 years younger than Orochimaru. Kakashi’s age of graduation implies that he was 2-3 years younger than his peers to enter the Academy and only remained there for a few months. In the Second Naruto Fanbook, the battlefield experience of “very young children,” like Kakashi’s graduating class, is attributed to the Third Shinobi War rather than the Second, so it can be assumed that the village was already in the Third Shinobi War when Kakashi was attending the academy and leading up to his graduation. 
* Year 57 ACM: Hatake Sakumo dies; Maito Gai graduates from the Academy
** Characters: Kakashi age 6; Gai age 7; Sakumo age 38
** Notes: Sakumo’s suicide takes place 5 years prior to the events of Kannabi Bridge. Permitting for assumed age gap between the members of Team Minato, this places Sakumo’s death when Kakashi is 6, in Year 57. Gai graduates from the academy when he is 7, and he is approximately 1 year older than Kakashi. Sakumo’s age at this time is conjectural (see Year 19). 
* Year 58 ACM: Hidan is born; Uchiha Obito, Nohara Rin, Sarutobi Asuma and Yuhi Kurenai graduate from the Academy; Team Minato and Team Choza are formed
** Characters: Kakashi age 6-7, Gai age 8, Rin, Obito, Asuma and Kurenai age 9, Ebisu and Genma age 10; Minato age 17; Choza age 18
** Notes: Hidan is 1 year older than Itachi and 9 years younger than Obito according to the data book entries. Obito, Rin, Asuma and Kurenai graduate from the academy at the age of 9. Ebisu is 1 year older than Obito and graduates at the age of 10. Genma is 2 years older than Obito and graduates at 10, but if the exam took place in the spring, it would allow for both Ebisu and Genma to be 10. It is assumed that since 2/3 members of both Teams would’ve graduated at this time, both teams were formed this year. It is probable that Gai and Kakashi served as back-up genin on other squads until more of their peers were available to form squads. 
* Year 58 ACM: Terumi Mei and Hoshigaki Kisame graduate from Kiri’s Ninja Academy
** Characters: Mei age 9; Kisame age 10
** Notes: According to the data books, Mei graduates at the age of 9. As she is the approximately same age as Obito, it likely occurs in the same year. Kisame is 1 year Mei’s senior and graduates at age 10, dating it as the same year. It is possible that this is the year that Zabuza massacres a number of Academy students (see Year 60 for further clarification.)
* Year 58 ACM: Team Minato and Team Choza take Chunin exams; Hatake Kakashi becomes a Chunin
** Characters: Kakashi age 6-7; Gai age 8, Rin and Obito age 9, Ebisu and Genma age 10; Minato age 17; Choza age 18
** Notes: Kakashi appears to take the Chunin exam in the manga with Team Minato, and as such it would be more likely that he was 7 rather than 6 as the data books imply, because Obito and Rin would not have graduated. It is further implied that Kakashi passes his Chunin exam before his teammates, suggesting that Obito and Rin took on a team alternate when they were promoted. The placement of their ages here is also highly contradictory, because although early manga canon and the data books establish Kakashi’s promotion at 6-7, in the Chunin exam illustration/animation he is aged up to approximately 12.
* Year 59 ACM: Uchiha Itachi, Uchiha Izumi and Inuzuka Hana are born
** Characters: Mikoto age 22; Hazuki age 25; Fugaku age 27; Tsume age 17-18
** Notes: Itachi is approximately 8 years younger than Kakashi and approximately 6 years older than Sasuke (dated by the Uchiha Massacre when Sasuke is age 7 and Itachi is 13). There is a mild discrepancy between the stated data book ages for Itachi and his age difference with Sasuke in the manga, so in this case, I have chosen to prioritize manga canon. Itachi Shinden implies that Itachi’s official age is increased, and that the difference between Sasuke and him is 5 years, but as Sasuke acknowledges that his brother defected at 13, this statement can be ignored. Itachi Shinden also states that Itachi and Izumi are the same age, and establishes a 25 year age gap between Izumi and her mother. Tsume is roughly 18 years older than her daughter. Notably, this would bring her below the age of majority at the time of her eldest child’s birth. 
* Year 60 ACM: Ayame is born
** Characters: Teuchi age 25
** Notes: Ayame is approximately 1 year younger than Itachi. While Teuchi might have been older than 25 given the age gap discrepancies from the data books, for the sake of consistency, his age is assumed as the above. 
* Year 60 ACM: Momochi Zabuza graduates from Kiri’s Ninja Academy; at some point prior to this, Zabuza massacres over one hundred Kiri students and Kiri is forced to change its graduation ceremony
** Characters: Zabuza age 9
** Notes: According to the data books, Zabuza graduated at the age of 9. However, his massacre of over one hundred Academy students is said to have occurred when he was not yet a student in Chapter 14, so it must predate this time. 
* Year 60 ACM: Uchiha Obito and Nohara Rin become Chunin
** Characters: Obito and Rin age 11; Kakashi age 9
** Notes: Obito and Rin both were promoted to Chunin at the age of 11 according to data book entries. 
* Year 61 ACM: Shiranui Genma and Maito Gai become Chunin
** Characters: Gai age 11; Genma age 13
** Notes: Gai and Genma become Chunin at the age of 11 and 13 respectively according to the data books.
* Year 62 ACM: Sasori kills the Third Kazekage and turns him into a human puppet; Rasa becomes Fourth Kazekage 
** Characters: Sasori age 16; Rasa age 24
** Notes: Chiyo describes the disappearance of the Third Kazekage as having taken place over ten years prior to the events of Part II (Chapter 267). However, as in Chapter 547, Chiyo implies that Rasa was in charge of the fate of Shukaku for all three of his children’s births (“This is our third child. So far he’s the only one that’s compatible”) it suggests that Rasa became Kazekage before Temari was born, thus dating this event. As all Kazekages until Gaara died by assassination, it is highly unlikely that Rasa was named successor while the Third Kazekage was still alive. Interestingly, it also means that Sasori would have weakened his own village in and around the Third Shinobi War, despite fighting in it himself to gain the moniker Akasuna no Sasori. 
* Year 62 ACM: Temari and Deidara are born
** Characters: Rasa age 24
** Notes: According to the data books, Deidara is age 19 at the time of his death in Part II. Temari is 3-4 years older than Gaara and so was born this same year. 
* Year 62 ACM: Shizune, Kurenai and Asuma become Chunin; Tsunade and Shizune leave the village
** Characters: Tsunade age 36; Shizune, Kurenai and Asuma age 12-13
** Notes: Asuma and Kurenai were promoted to Chunin ate the ages of 12 and 13 respectively. Although the anime places Raido on this team also, it is debatable whether or not that’s relevant, especially since Raido is approximately 4 years older and has no stated graduation age. Since Konoha’s Chunin exams are done in teams, it’s presumed that Shizune stayed in Konoha until she became a Chunin. Since Tsunade leaves the village with Shizune in tow, it seems as though she would’ve been living in Konoha semi-retired for 9 years. This also places their departure right around the beginning of the war, which makes a lot of sense if Tsunade did not want to get pulled into combat/medicine.
* Year 62 ACM: Third Shinobi War (Battle of Kannabi Bridge); Hatake Kakashi becomes a Jonin; Uchiha Obito is presumed dead 
** Characters: Obito and Rin age 13; Kakashi age 11
** Notes: Obito is aged 13 at the time of his presumed death. Although Kakashi’s promotion age to Jonin is stated to be 9 in the data books, this would make him 9 at the time of Kannabi Bridge, and that much of an age difference doesn’t seem feasible based on the sizes + relationships between Team Minato. A two-year gap accounts for Kakashi’s early promotions without affecting the other elements of the team. Thus, in this timeline, Kakashi’s ages of promotion are: Genin ~5; Chunin ~6/7; Jonin ~11
*** Known conflicts: Konoha v. Iwa (Second Tsuchikage’s reign)
* Year 62 ACM: Third Shinobi War continues; Maito Dai dies in battle against the Swordsman of the Mist
** Characters: Gai age 12; Ebisu age 14; Genma age 14-15; Dai age 35
** Notes: During Chapter 668, Gai notes that his father is a genin and shouldn’t be on the battlefield, suggesting that at this time Gai is already a Chunin. As Gai became a Chunin at age 11, he must be at least 11, but more than likely a little older because of the timeline of the war. Based on his appearance, Gai is likely around 12, marking the ages of his teammates. According to the data books, Dai is 35 when he dies. 
*** Known conflicts: Konoha vs. Kiri (Fourth Mizukage’s reign OR Madara’s shadow reign)
* Year 62 ACM: Yuki Haku, Kaguya Kimimaro and Jugo born
** Characters: Zabuza age 11
** Notes: Haku is 3 years older than Naruto during the events of Part I, thus he is born 3 years before him in the Year 62. Kimimaro and Jugo are both the same age as Haku.
* Year 63 ACM: Mitarashi Anko graduates from the Academy; Team Orochimaru is formed 
** Characters: Anko age 10; Orochimaru age 36
** Notes: According to the data books, Anko graduates from the academy at the age of 10. Orochimaru is approximately 26 years older than Anko. 
* Year 63 ACM: Nohara Rin dies by Hatake Kakashi’s hand; Uchiha Obito and Hatake Kakashi awaken the Mangekyo Sharingan
** Characters: Kakashi age 12-13; Rin and Obito age 14
** Notes: Rin dies while Konoha is still at war, so this year is most likely since the following year would be the end of the war. Obito is in rehabilitation long enough to grow out his hair past his shoulders and relearn to walk, so it’s likely to have taken place approximately one year after Kannabi Bridge. 
*** Known conflicts: Konoha v. Kiri (Madara’s shadow reign of Fourth Mizukage)
* Year 63 ACM: Namikaze Minato faces A (Fourth Raikage) and Killer Bee on the battlefield during the Third Shinobi War 
** Characters: Minato age 22; Killer Bee age 19; A (Fourth Raikage) age 30
** Notes: In Chapter 542, Minato faces the A-B combo in a mission during the war, before either of them has taken on the title of Kage. Since A’s father dies at the end of the war, this event must occur sometime previous to the war end. I posit that the “other mission” Minato had at the time of Rin’s death was facing these ninja.
*** Known conflicts: Konoha v. Kumo (Third Raikage’s Reign)
* Year 63 ACM: Hanzo confronts the first iteration of Akatsuki; Yahiko dies 
** Characters: Yahiko and Nagato age 18
** Notes: Hanzo’s confrontation took place during the Third Shinobi War, so it must take place at some point prior to the war’s end in Year 64. Notably, this age is contradictory to sources that suggest Yahiko died at 15, but the increase in age does bring him closer to the 25-30 range that Deva Pain is estimated to be during Battlefield Konoha, as he’d likely be fully grown by age 18. Nagato’s influence over the body may bridge the age gaps.
* Year 63 ACM: Uchiha Madara dies; Obito begins to control Akatsuki from the shadows 
** Characters: Madara age 88; Obito age 14
** Notes: Madara dies after Rin is killed, as he is the one who orchestrates her death, but before Minato dies, because Obito acts independently to attack Konoha. This dates Madara’s death to the Year 63.
* Year 63 ACM: Kankuro is born
** Characters: Rasa age 25; Temari age 1
** Notes: Kankuro is 2-3 years older than Gaara and approximately 1 year younger than Temari and so was born Year 63, roughly between their birth dates.
* Year 63-64 ACM: A (Third Raikage) dies after battling ten thousand shinobi for three nights; A (Fourth Raikage) assumes his title and restricts Killer Bee to the village 
** Characters: A (Fourth Raikage) age 30-31; Killer Bee age 19-20
** Notes: According to Chapter 543, at some point before the end of the war, The Third Raikage dies and the Fourth Raikage is named, with A shortly after deciding to limit Bee’s movements outside the village. 
* Year 64 ACM: Third Shinobi War ends; Hyuga Neji, Rock Lee, Tenten, Sai and Karui are born
** Characters: Hizashi age 27
** Notes: Itachi is approximately 5 years old at the end of the Third War (Itachi Shinden), thus dating the war’s end. Team Gai is one year older than the Rookie 9. Sai and Karui are both the same age as Team Gai in Part II (approximately 17) so they are born this same year.
* Year 64 ACM: Namikaze Minato is named Hokage; Kakashi joins ANBU
** Characters: Minato and Kushina age 23; Kakashi age 13
** Notes: Hiruzen steps down as a result of the the Third Shinobi War, dating Minato’s promotion to after the war. Kakashi becomes a member of ANBU under Minato’s leadership. 
* Year 64-65 ACM: Konoha’s Rookie 9 are born (Uchiha Sasuke, Haruno Sakura, Hyuga Hinata, Inuzuka Kiba, Aburame Shino, Yamanaka Ino, Nara Shikamaru, Akimichi Choji); Uzumaki Karin and Hozuki Suigetsu are born (at some point prior to this but not before Year 51, Hozuki Mangetsu is born); Omoi is born; Ōtsutsuki Shiro is born 
** Characters: Yoshino and Tsume age 23-23; Shikaku, Inoichi and Choza age 24-25; Shibi age 26; Mikoto and Hiashi age 28; Fugaku age 33
** Notes: Sasuke is born in the Year 65 because he is only a few months old at the time of the Kyubi attack. Hiashi is 3 years older than Ino-Shika-Cho according to the data books, while Tsume is 1-2 years younger. Shibi is older than Ina-Shika-Cho but younger than Mikoto. Mikoto and Fugaku’s ages are derived from the knowledge that they die at 35 and 40 respectively, when Sasuke is 7. These ages are largely approximates as they are not incorporating actual day-month birth dates of adults or children. According to the data books, Karin and Suigetsu are both approximately the same age as Sasuke in Part II. Mangetsu was born after Zabuza according to Chapter 523, since it was because of him he got his nickname. According to the data books, Omoi is 1 year younger than Karui. 
* Year 64-65 ACM: Team Orochimaru takes the Chunin Exams; Mitarashi Anko becomes a Chunin 
** Characters: Anko age 12
** Notes: According to the data books, Anko is promoted to Chunin at the age of 12. There is a slight contradiction in terms of team ages and promotions, as Anko is seen taking the Chunin exam together during the same exam as Team Minato and Team Choza in Chapter 599, in spite of the fact their age difference would her place as age 4-5, too young to have graduated. Here, I choose to value team composition and promotion ages over manga imagery.
* Year 65 (October 10) ACM: Uchiha Obito unleashes Kyubi on Konoha; Sarutobi Biwako is killed by Uchiha Obito; Umino Ikkaku, Umino Kohari, Namikaze Minato and Uzumaki Kushina die fighting against the Kyubi; Uzumaki Naruto is born; Sarutobi Hiruzen reassumes role of Hokage 
** Characters: Iruka age 11; Kakashi age 14; Obito age 16; Minato and Kushina age 24; Ikkaku and Kohari age 45; Biwako age 55; Hiruzen age 57
** Notes: Biwako, Ikkaku and Kohari’s ages at the time of their appearances are derived from the data books.
* Year 65 ACM: Umino Iruka graduates from the Academy; Ebisu becomes a Chunin
** Characters: Iruka age 11; Ebisu age 17
** Notes: Iruka graduates from the academy at the age of 11, but notably after the Kyubi attack as the loss of his parents drives him to become a class clown (Chapter 1). Ebisu becomes a Chunin at the age of 17 according to the data book. Provided that he was Gai and Genma’s third partner in their second Chunin exam, this implies that it took Ebisu three tries to pass. 
* Year 66 ACM: Orochimaru becomes a missing nin
** Characters: Orochimaru age 40; Hiruzen age 58
** Notes: As Orochimaru defecting comes partly as a result of Minato being named Hokage, it must occur after. The manga and anime imply that the defection takes place shortly after Hiruzen reassumes the role Hokage. Itachi Shinden states that Orochimaru leaves the village 6 years prior to the massacre, which dates it no later than the year 66. 
* Year 66 ACM: Itachi graduates from the Academy; Gaara is born
** Characters: Itachi age 7; Rasa age 28
** Notes: When Sasuke begins the academy at the age of 7, we are told that Itachi graduated by that age, thus dating this event. Gaara is 1 year younger than Naruto, so was born the year after him in Year 66.
* Year 66 ACM: Gekko Hayate graduates from the Academy; a team composed of Gekko Hayate, Morino Ibiki and Tokara takes the Chunin exams
** Characters: Hayate age 11-12; Ibiki age 15
** Notes: Hayate graduates from the academy at the age of 12. There is a slight contradiction in terms of team ages and promotions, as Hayate and Ibiki are seen taking the Chunin exam together during the same exam as Team Minato and Team Choza in Chapter 599, in spite of not all members of that team having graduated, according to the data books (additionally, this would place Hayate at around 3-4 at the time of the first exam). Here, I choose to value team composition and promotion ages over manga imagery.
* Year 67 ACM: Izumo Tenma dies by Uchiha Obito’s hand; Uchiha Itachi awakes the Sharingan
** Characters: Itachi age 8; Tenma age 12; Obito age 18
** Notes: According to Chapter 142, Itachi is able to use the sharingan by the age of 8. Itachi Shinden reiterates this point and further adds the detail that Itachi awakens his sharingan as a result of the death of his teammate by Obito’s hand.  
* Year 68-69 ACM: Kumo ninja try and fail to kidnap Hyuga Hinata; Hizashi Hyuga is killed in his brother’s place as a result of the incident
** Characters: Hinata age 3; Neji age 4; Hizashi and Hizashi age ~31-32
** Notes: The Hyuga incident takes place ten years prior to the events of Part II and the data books state that Hizashi was approximately 32 when he died. In order to maintain the correct age difference between the elder Hyuga and their children, 31 seems a better estimate. This also complies with the constructed timeline for Hiashi’s birth year. 
* Year 69 ACM: Team Ebisu is born (Sarutobi Konohamaru, Kazamatsuri Moegi and Udon); Uchiha Itachi becomes a Chunin
** Notes: Konohamaru is approximately 4 years younger than Naruto, who is born 4 years prior in the Year 65. His classmates are the same age. Itachi Shinden and the data books establish that Itachi becomes a Chunin at age 10. 
* Year 70 ACM: Inari is born 
** Characters: Tsunami age 21; Tazuna age 51
** Notes: According to the data books, Inari is 4-5 years younger than Naruto. He is between the ages of Konohamaru and Hanabi, and is younger than his grandfather Tazuna by 51 years, and his mother Tsunami by 21 years. 
* Year 70 ACM: Umino Iruka becomes a Chunin; Hyuga Hanabi is born
** Characters: Iruka age 16; Hiashi age 33; Hinata age 5
** Notes: According to the data books, Iruka becomes a Chunin at the age of 16. According to Chapter 78. Hanabi is 5 years younger than Hinata.  
* Year 70 ACM: Uchiha Itachi joins the ANBU; Uchiha Izumi graduates from the academy; Konoha implements a minimum graduation age of 11
** Characters: Izumi and Itachi age 11; Tenzo age 16; Kakashi age 19
** Notes: According to Itachi Shinden, Itachi joins the ANBU at the age of 11, when Kakashi is approaching twenty. This would place the event at sometime before June. During the same chapter where this is noted (Chapter 4) Itachi also notes that no matter how talented Sasuke is, he cannot graduate before the age of 11. Izumi graduates sometime shortly before this policy comes into place, according to the same chapter. 
* Year 71 ACM: Uchiha Shisui dies; Uchiha Itachi awakes the Mangekyo Sharingan 
** Characters: Shisui age 16-17; Itachi age 12
** Notes: According to Itachi Shinden, Shisui dies one year prior to the events of the coup. Itachi awakens the sharingan as the result of Shisui’s death.
* Year 71 ACM: Momochi Zabuza attempts a coup d’etat on Fourth Mizukage Karatachi Yagura (controlled by Obito); Momochi Zabuza, Yuki Haku, Hoshigaki Kisame and Utakata defect from Kiri; the Kaguya clan is wiped out in their assault on Kiri
** Characters: Zabuza age 20; Haku and Kimimaro age 9; Obito age 22; Kisame age 23; Utakata age 16-17
** Notes: According to Chapter 30, shortly before Zabuza defects from Kiri, he attempts a coup d’etat. Based on Haku’s appearance at the time of his defection, he is no older than ten years old, and Zabuza appears as a full grown adult. Chapter 26 and 29 suggest that Haku and Zabuza had already been companions for some time prior to their defecting. Yagura’s reign of “Blood Mist Village” saw a number of defections from Kiri, including most of the ninja swordsmen and in the anime, Utakata, so it’s assumed these defections happened in relatively close proximity to the kekkei genkai massacres. Notably, by this point Obito is leading Kiri, according to Chapter 507. Kisame claims in Chapter 353 of Part II that he last saw Suigetsu ten years prior, dating his defection at this time. In the anime (Episode 126) the Kaguya clan’s attack on Kiri and Kimimaro’s subsequent orphaning takes place at the same time as Haku’s defection. Kimimaro is the same age as Haku. 
*** Known conflicts: Kiri internal conflict; Kiri v. Kaguya clan (Obito’s shadow reign of Fourth Mizukage)
* Year 72 ACM: Uchiha Itachi and Uchiha Obito massacre the Uchiha clan; Uchiha Itachi joins the Akatsuki 
** Characters: Itachi age 13; Obito age 23; Sasuke age 7; Mikoto age 35; Hazuki age 38; Fugaku age 40
** Notes: Itachi and Sasuke’s respective ages at this time are established by both the anime and manga. Mikoto and Fugaku’s ages are established by the data books. Hazuki’s age and time of death are established in Itachi Shinden. Itachi Shinden implies that Itachi is one year younger than stated in other canonical sources, but since Sasuke would be aware of his brother’s own age, this statement can be ignored. 
* Year 72: Orochimaru leaves the Akatsuki
** Characters: Orochimaru age 46; Itachi age 13
** Notes: Chapter 345 (as well as prior dialogue and Itachi Shinden) establishes that Itachi and Orochimaru were in the Akatsuki at the same time. Thus, Orochimaru could not have left the Akatsuki until after Itachi joined. While in Chapter 238, Sasori claims that Orochimaru left seven years prior to Part I, this statement can be ignored because that would place Itachi’s age at 10-11 when Orochimaru left, and thus too young to have been in the Akatsuki. A similar statement in Chapter 353 is ignored for the same discrepancy. 
* Year 74: Hatake Kakashi leaves ANBU
** Characters: Kakashi age 22-23; Yamato age 19-20
** Notes: The light novels canonize Itachi and Kakashi being in Team Ro in ANBU together, which would place his ANBU discharge at minimum age 20. It’s suggested that Kakashi was still in ANBU at the time of the Uchiha massacre at age 21, an event which saw the complete decimation of the Konoha Police Force. Thus, I’m inclined to believe that no ANBU captain would’ve been discharged until at least a year or two after they’d lost their main internal security force. This date is supported is also supported by the anime adaptation.
* Year 77: Hyuga Neji, Rock Lee and Tenten graduate from the Academy; Team Gai is formed 
** Characters: Lee, Tenten and Neji age 12-13
** Notes: Team Gai is one year older than Team 7, both in age and in experience. 
* Year 78: Events of Part I inc. Rookie 9 graduate; Momochi Zabuza and Yuki Haku die; Kazekage Rasa is assassinated by Orochimaru; Konoha 11 take Chunin exams (Konoha Crush); Gekko Hayate and Sarutobi Hiruzen die; Tsunade becomes Hokage; Sasuke becomes a missing nin
** Characters: Gaara age 12; Rookie 9 age 12-13; Team Gai age 13-14; Haku and age 15; Temari age 16; Itachi age 18-19; Hayate age 23; Iruka age 23; Zabuza and Kakashi age 26; Gai age 27; Asuma and Kurenai age 28; Kisame age 29; Rasa age 40; Orochimaru, Jiraiya and Tsunade age 51-52, Hiruzen age ~69
** Notes: If going on an average Japanese school year, academy graduation likely takes place in late March or early April. In Chapter 34, Hiruzen announces that the Chunin exams will begin on the “first day of the seventh moon,” or July 1st. Their first test spans only a few hours, and their second test (immediately after) spans 120 hours, or five days. A month elapses between the preliminaries and the finals (Chapter 88), so, roughly estimated, the Chunin exam final to takes place on August 6th. In the aftermath, Naruto masters the rasengan with Jiraiya over a span of roughly two weeks while retrieving Tsunade. With travel time, Tsunade likely returned at the end of August. Since only a short time elapses between Tsunade becoming Hokage and Sasuke leaving the village, but enough time to do Lee’s surgery and for Kakashi to complete an S-rank mission, I estimate the Valley of the End fight to take place in the first week of September. There is a three month gap between Chapters 237 and 238, leaving Part I ending off at December. (Notably, the Sand siblings are seen leaving Konoha after this three-month time skip.)
*** Known conflicts: Konoha v. Suna and Oto
* Year 78-81: Karatachi Yagura dies in battle; Sanbi dissipates and is forced to re-articulate itself; Terumi Mei becomes Mizukage
** Characters: Mei age 28-31
** Notes: When Zabuza defects from Kiri, it is after he has tried to kill the Mizukage of “Blood Mist Village,” Yagura, and Kakashi points out in Chapter 30 that Zabuza is raising funds for a “second attempt.” This statement suggests that Yagura is still alive as of the Land of Waves arc. However, by Chapter 317, the Sanbi exists as an entity separate from Yagura and the current Mizukage is revealed to be Mei in Chapter 454. This suggests that Yagura died in battle, or else Kiri would have likely made a new jinchuriki after his death. Yagura’s age at this time is unknown, but by the end of Part I, he would have been ruling as Mizukage for at least 20 years, as Mei was a participant in the Blood Mist graduation exam (Sasuke Shinden Chapter 1). 
* Year 80: Gaara becomes a Chunin 
** Notes: According to the Third Data Book, Gaara becomes a Chunin at the age of 14, approximately one year prior to the events of Part II.
* Year 81: Events of Part II inc. Fourth Shinobi War; Sasori, Chiyo, Sarutobi Asuma, Kakuzu, Uchiha Itachi, Deidara, Jiraiya, Uzumaki Nagato, Konan, Hoshigaki Kisame, Shimura Danzo, Yamanaka Inoichi, Nara Shikaku, Hyuga Neji and Uchiha Obito all die
** Characters: Gaara age 15; Rookie 9 age 15-16; Team Gai age 16-17; Suigetsu and Karin age 16-17; Kankuro and Jugo age 18; Temari and Deidara age 19; Itachi age 21-22; Jiraiya age 54; Yamato age 26-27; Kakashi age 29-30; Asuma and Obito age ~31; Kisame age 32; Nagato, Konan and Sasori age 35; Inoichi and Shikaku age 41-42; Danzo and Chiyo age 73; Kakuzu age 91
** Notes: In Part II, Naruto comes back when the Chunin exams are in the midst of important preparations, presumably also scheduled for July (though they do take place biannually). Assuming Temari’s visit to Konoha is among the last of the preparations for the exam, Naruto returns to Konoha sometime in late June (close to the two-and-a-half year gap that’s stated in ep. 1 of Shippuden). The Kazekage rescue mission arc takes place over roughly six days. The Tenchi bridge mission takes place after an additional ten days. The Akatsuki suppression mission takes place immediately after over roughly ten days (two days of rasenshuriken training, three days each to seal the Nibi and Sanbi, and an additional 24 hours + travel time for Team 7 to join Team 10. With these missions in mind, it can be estimated that the first three arcs to conclude at the end of July. Though it’s less clear how much time elapses during the subsequent arcs (from the Itachi Pursuit mission onward) at the climax of the war in Chapter 643, Obito notes that it is Naruto’s birthday, on October 10th, marking the approximate end date of the war.
*** Elaboration: Notably, this has to be October of the same year given that Kurenai is at least two months pregnant by the end of the third arc (marked by at least one month to become aware of it, and the aforementioned month of missions), and gives birth to Mirai in the fall after the war. Gaara and Naruto are both noted to be 17 by the end of the war but both are at least 1 year younger than Neji so it is presumed that any statements making their ages equivalent are inaccurate; it is also possible that those ages may apply in Chapter 699, which has a time-skip of several months to a year. 
**** Known conflicts: Allied Shinobi Forces vs. Madara and Obito (Fifth Hokage/Fifth Mizukage/Fifth Kazekage/Fourth Raikage/Third Tsuchikage’s Reign)
* Year 81 (Fall, likely late November): Sarutobi Mirai is born
** Characters: Kurenai age 31
** Notes: As Kurenai falls pregnant in the spring preceding the war, Mirai is born in autumn shortly after the war ends.
* Year 81-82: Hatake Kakashi named Hokage, Sasuke is pardoned
** Characters: Kakashi age 30; Sasuke age 16
** Notes: Kakashi is named Hokage shortly after the war and Sasuke is pardoned partly on account of his word. Kakashi does not fully assume the responsibilities and title until almost a year after the war is over (Kakashi Hiden), though it’s not addressed whether the pardon is issued before or after Kakashi Hiden, since the novel begins with Kakashi already selected as Hokage and carved on the mountain. For the purposes of this timeline, I will assume the pardon comes pre-Kakashi Hiden. 
* Year 83: Nara Shikamaru and Temari begin dating; Akimichi Choji and Karui begin dating; Sai and Yamanaka Ino begin dating
** Characters: Shikamaru, Ino and Choji age 18; Karui and Sai age 19; Temari age 21
** Notes: Shikamaru Hiden takes place before The Last, in which Shikamaru has a date with Temari, so he starts dating Temari two years after the war in the Year 83. Choji and Karui are established as beginning a relationship in the beginning of Sakura Hiden, which is a few months after Shikamaru Hiden. Sai and Ino go out on a date at the end of Sakura Hiden.  
* Year 83-85: Uzumaki Naruto and Hyuga Hinata date and get married
** Characters: Naruto and Hinata age 18-20
** Notes: The events of Naruto the Last (canonized in a light novel) and Konoha Hiden establish that Naruto and Hinata get together approximately 2 years after the war. Assuming they get married when they reach the age of majority at age 20, they get married in the Year 85. 
* Year 85: Uzumaki Boruto is born 
** Characters: Naruto and Hinata age 20
** Notes: It’s presumed that Boruto would be born prior to Sarada since his parents get married before hers. 
* Year 85: Sasuke returns to Konoha; Sakura and Sasuke go travelling together and marry; Uchiha Sarada is born
** Characters: Sasuke and Sakura age 20
** Notes: Sasuke is still on his journey alone during the events of Konoha Hiden, but as Sarada and Boruto are are approximately the same age, they’re both born within this same year or so span. The implication seems to be that Sasuke bringing Sakura on the journey was a marriage proposal in and of itself. 
* Year 85: Yamanaka Ino and Sai marry; Inojin is born; Akimichi Choji and Karui marry; Chocho is born; Nara Shikamaru and Temari marry; Shikadai is born; Metal Lee is born
** Characters: Ino, Choji and Shikamaru age 20; Karui and Sai age 21; Temari age 23-24
** Notes: It seems improbable that this many of Naruto’s friends would get married and have children in this short a time frame, given that two of these families required the wife’s immigration to Konoha. However, in order to be the same age as Boruto and Sarada, all of these children would have to be born around this year.  
* Year 87: Uzumaki Himawari is born
** Notes: Himawari is noted to be 2 years younger than Boruto in the Blank Period.
* Year 96: Naruto becomes Hokage; Events of Naruto Gaiden/Konoha Shinden
** Characters: Sarada age 11; Naruto, Sakura and Sasuke age 31; Yamato age 42; Kakashi age 45; Gai age 46; Mirai age 14
** Notes: There is approximately a 13 year time-skip between Chapter 699 and Chapter 700. Thus, this dates Sarada’s age at approximately 11 during both 700 and Gaiden, placing those events in immediate succession. 
* Year 97: Boruto and Sarada graduate; Team Konohamaru takes the Chunin Exams
** Characters: Boruto and Sarada age 12; Naruto, Sasuke and Sakura age 32; Kakashi age 46
* Year 100: Yoshiko's immortality runs out and she dies of old age
** Characters: Yoshiko Otsutsuki age 1150+