Luoyang

City · c. 224 CE · in Central Asia

Capital of Cao Wei (224–264), Western Jin (266–420), Eastern Wei (534–550), and 1 more.

Ezhou (c. 207 CE): Capital of Eastern Wu (207–229).
Vijaya (c. 207 CE): Capital of Chámpa (207–1652).
Bursa (202 CE): Capital of Ottoman Empire (1329–1365).
Bagan (200–1293 CE): Capital of Pagan Kingdom (850–1293).
Washim (c. 260 CE): Capital of Vakataka Kingdom (260–500).
Cologne (c. 261 CE): Capital of Gallic Empire (261–274).
Palmyra (c. 261–1929 CE): Capital of Palmyrene Empire (261–269).
Jeju (c. 263 CE): Capital of Tamna (263–1278).
Al-Hirah (c. 270–602 CE): Capital of Lakhmid Kingdom (270–602).
Kanchipuram (c. 283 CE): Capital of Late Pallava Empire (283–805).

Around the same time and place

Han dynasty (202 BCE – 220 CE): Liu Bang founded the Han dynasty, a formative imperial age whose name became that of the majority Chinese ethnic group.
Battle of Red Cliffs (208 CE): Allied forces of Sun Quan and Liu Bei defeated Cao Cao's fleet on the Yangtze, preventing his conquest of the south.
Three Kingdoms period (220–280 CE): After the end of the Han, China was divided among the states of Wei, Shu and Wu.
Goguryeo (c. 37 BCE – c. 668 CE): Kingdom traditionally founded by Jumong in 37 BCE that grew to rule northern Korea and Manchuria.
Baekje (c. 18 BCE – c. 660 CE): Kingdom in southwestern Korea, traditionally founded in 18 BCE, a conduit of culture and Buddhism to Japan.
Cao Cao (155 CE – 220 CE): Warlord and chancellor of the late Han who unified northern China; his son founded the state of Wei.
Zhuge Liang (181 CE – 234 CE): Chancellor of the state of Shu Han, celebrated as a strategist and statesman in Chinese history and legend.
Yellow Turban Rebellion (184–205 CE): Peasant uprising led by the Taoist healer Zhang Jue that fatally weakened the Han dynasty and empowered regional warlords.