1920s

*""So, there was the Roaring Twenties, followed by the Great Depression. So, if we're getting it backwards, we should get really wealthy in 10 years""*
―Gunner Stinnett[src]

## 1920

### January

#### 17th

* Prohibition in the United States begins.

### July

* Korra leaves the spirit portals open and denounces the Avatar's role as the bridge between the two worlds, assuming a more general peacekeeper role.
* The Water Tribe Civil War ends. The Southern Water Tribe becomes independent with Tonraq as its new chief.
* Desna and Eska become the new co-chiefs of the Northern Water Tribe.
* After millennia of exile in the Spirit World, Hundun reenters the mortal world to take revenge on the Avatar and throw the world into chaos. Korra defeats and kills Hundun, however, restoring balance in the Spirit World.
* A number of nonbenders gain airbending abilities all across the four nations, including Bumi, Kai, Opal, and Zaheer.
* Korra is banished from Republic City by President Raiko.
* The Earth Queen Hou-Ting orders the Dai Li to kidnap airbenders throughout Ba Sing Se.
* Zaheer escapes his prison and subsequently frees his teammates Ghazan, Ming-Hua, and P'Li.
* Korra becomes the first metalbending Avatar.
* Zaofu is attacked by the Red Lotus in search of Korra.
* Earth Queen Hou-Ting is assassinated by Zaheer and the Inner Wall of the city is brought down by Ghazan, plunging the Earth Kingdom into chaos.
* The Red Lotus attacks the Northern Air Temple and threatens to destroy the revived Air Nation if Korra does not surrender herself.
* P'Li is killed by Suyin.
* Bolin becomes the second known non-Avatar who can lavabend.
* Ghazan destroys the Northern Air Temple.
* Zaheer becomes the second person in history to be able to fly.
* Ming-Hua is killed by Mako.
* Ghazan commits suicide in an attempt to bury Mako and Bolin.
* Zaheer is imprisoned once again.
* Jinora receives her airbending tattoos and is anointed as a master.
* Korra is officially welcomed back to Republic City.
* The airbenders return to their nomadic roots, promoting peace, balance, and harmony around the world while Korra recuperates.

### October

* After realizing that Vandal Savage was on her and her husband's tail, "Edith Boardman" and "Joe Boardman" moved once again. However, Aldus admitted to having heard them talk at night and so they decided to explain the nature of their eternal cycle of reincarnation to him

## 1923

### March

* Wu is crowned the fifty-fourth Earth King.
* Kuvira announces during Wu's coronation the dissolution of the Earth Kingdom and the monarchy, reforming it into a new "Earth Empire" under her leadership.
* After defeating Korra in a one-on-one duel, Kuvira successfully annexes Zaofu into the Earth Empire, bringing the entire nation under her control.
* With a spirit energy cannon at her disposal, Kuvira marches her army to Republic City and forces President Raiko to surrender the United Republic of Nations to her.
* Hiroshi Sato sacrifices himself in the battle against Kuvira's enormous mecha suit.
* A new spirit portal emerges in the heart of Republic City.
* Kuvira surrenders herself and the military of the Earth Empire.
* Wu plans to abolish the Earth Kingdom monarchy, officially, in favor of democratically elected leaders for the various states, territories and provinces.
* Iknik Blackstone Varrick and Zhu Li Moon marry.
* President Raiko announces an expansion of Republic City.

## 1924

### June

#### 29th

* Elizabeth Short, later known as Black Dahlia, is born.

## 1928

### November

#### 28th

* Hazel Levesque is born to Marie Levesque and Pluto.