Answer the question at the end by quoting:

Claudius Ptolemy (; Greek: Klaudios Ptolemaios, Klaudios Ptolemaios [klawdios ptoleme:os]; Latin: Claudius Ptolemaeus; c. AD 100 - c. 170) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. He lived in the city of Alexandria in the Roman province of Egypt, wrote in Koine Greek, and held Roman citizenship. The 14th-century astronomer Theodore Meliteniotes gave his birthplace as the prominent Greek city Ptolemais Hermiou
Ptolemaeus (Ptolemaios - Ptolemaios) is a Greek name. It occurs once in Greek mythology, and is of Homeric form. It was common among the Macedonian upper class at the time of Alexander the Great, and there were several of this name among Alexander's army, one of whom made himself King of Egypt in 323 BC: Ptolemy I Soter. All the kings (Pharaohs) after him, until Egypt became a Roman province in 30 BC, were also Greek Ptolemies. The name Claudius is a Roman nomen; the fact that Ptolemy bore it indicates he lived under the Roman rule of Egypt with the privileges and political rights of Roman citizenship. It would have suited custom if the first of Ptolemy's family to become a citizen (whether he or an ancestor) took the nomen from a Roman called Claudius who was responsible for granting citizenship. If, as was common, this was the emperor, citizenship would have been granted between AD 41 and 68 (when Claudius, and then Nero, were Roman emperors). The astronomer would also have had a praenomen, which remains unknown. The 9th-century Persian astronomer Abu Ma'shar presents Ptolemy as a member of Egypt's royal lineage, stating that the ten kings of Egypt who followed Alexander were wise "and included Ptolemy the Wise, who composed the book of the Almagest". Abu Ma'shar recorded a belief that a different member of this royal line "composed the book on astrology and attributed it to Ptolemy". We can evidence historical confusion on this point from Abu Ma'shar's subsequent remark "It is sometimes said that the very learned man who wrote the book of astrology also wrote the book of the Almagest. The correct answer is not known". There is little evidence on the subject of Ptolemy's ancestry, apart from what can be drawn from the details of his name (see above); however, modern scholars refer to Abu Ma'shar's account as erroneous, and it is no longer doubted that the astronomer who wrote the Almagest also wrote the Tetrabiblos as its astrological counterpart. Ptolemy wrote in Greek and can be shown to have utilized Babylonian astronomical data. He was a Roman citizen, but was ethnically either a Greek or a Hellenized Egyptian. He was often known in later Arabic sources as "the Upper Egyptian", suggesting he may have had origins in southern Egypt. Later Arabic astronomers, geographers and physicists referred to him by his name in Arabic: baTlumyws Batlamyus.

How else was the name important?

It would have suited custom if the first of Ptolemy's family to become a citizen (whether he or an ancestor) took the nomen from a Roman called Claudius

Answer the question at the end by quoting:

AKB48 (pronounced A.K.B. Forty-eight) are a Japanese idol girl group named after the Akihabara (Akiba for short) area in Tokyo, where the group's theater is located. The group has expanded since then to include over 130 members as of December 2015, aged from their early teens to their mid-20s. AKB48's producer, Yasushi Akimoto, wanted to form a girl group with its own theater (unlike pop groups performing occasional concerts and seen on television) and performing daily so fans could always see them live. This "idols you can meet" concept includes teams which can rotate performances and perform simultaneously at several events and "handshake" events, where fans can meet group members.
The group has publicized special events to choose the promotional and recording lineups for some of its singles. In 2009, the concept of senbatsu sosenkyo (Xuan Ba Zong Xuan Ju , "selection general election") was introduced, which allowed fans to vote their favorite members into the promotional line up or senbatsu (Xuan Ba , "selection") for one of their annual singles. Ballots are obtained by purchasing the group's latest "election single", or, alternatively, through the group's mobile app products and fan club subscriptions. Top vote getting members are heavily promoted, with the winner getting the centerpiece of the group's live performances of the single. The total pool of votes counted has exceeded three million votes for individual events since 2015. Fans have reportedly bought hundreds of copies of singles to vote for their favorite members. Another selection method, AKB48's rock-paper-scissors tournaments, was introduced in 2010 for the group's 19th single ("Chance no Junban") and has recurred as an annual event. Members of AKB48 and its sister groups compete in the knockout tournament to be part of the recording and promotional lineup for the group's next single, with participants wearing a variety of costumes. Starting with 2014, the tournament does not determine the promotional line up of a single anymore. Instead, the winner would debut as a soloist or, if she was already a soloist, would perform a solo concert. AKB48 has also used the general election scheme to determine set lists for an annual Request Hour (rikuesutoawa, rikuesuto awa) show. Other annual events include an AKB48 group only version of Kohaku Uta Gassen and the AKB group draft meeting (AKB48gurupu dorahutoHui Yi , AKB48 gurupu dorafuto kaigi), in which all teams from any of the sister groups chose new members from a pre-selected group of applicants.

what happened with the tournament?
Members of AKB48 and its sister groups compete in the knockout tournament to be part of the recording and promotional lineup for the group's next single,