21年

21年に韓国・中国・日本・アメリカであった出来事を同じ年の軸に並べる。

出来事0件。本文は原典の年表の原文のままで、出典は出典とライセンスにある。上下の灰色の行は前後2年の文脈だ。

韓国三国時代 (朝鮮半島) 紀元前57–660	中国漢紀元前206–220	日本弥生時代紀元前300–250	アメリカ
この年の収録なし	この年の収録なし 22Lulin: Rebellion erupts in Nanyang 22March — Liu Xuan (later known as the Gengshi Emperor) is enthroned by the rebels 22Red Eyebrows: Xin forces are defeated by the rebels 23昆陽の戦い 23Koreans raid the Lelang Commandery and take slaves 23October — Lülin rebels stormed the Weiyang Palace and killed Wang. The Gengshi Emperor ascended the throne, restoring the Han dynasty. 23January — Lulin: Xin forces are defeated by rebels 23October — Lulin: Rebels take Chang'an and kill Wang Mang; Luoyang falls soon after 23The Protectorate of the Western Regions is abandoned	この年の収録なし	1607年〜収録

韓国三国時代 (朝鮮半島) 紀元前57–660

中国漢紀元前206–220

日本弥生時代紀元前300–250

アメリカ

22Lulin: Rebellion erupts in Nanyang
22March — Liu Xuan (later known as the Gengshi Emperor) is enthroned by the rebels
22Red Eyebrows: Xin forces are defeated by the rebels
23昆陽の戦い
23Koreans raid the Lelang Commandery and take slaves
23October — Lülin rebels stormed the Weiyang Palace and killed Wang. The Gengshi Emperor ascended the throne, restoring the Han dynasty.
23January — Lulin: Xin forces are defeated by rebels
23October — Lulin: Rebels take Chang'an and kill Wang Mang; Luoyang falls soon after
23The Protectorate of the Western Regions is abandoned

1607年〜収録