Ye

City · c. 337–576 CE · in Central Asia

Capital of Later Zhao (337–351), Northern Qi (555–576).

Ji (c. 337 CE): Capital of Former Yan (337–370).
Wiryeseong (c. 347 CE): Capital of Baekje (347–660).
Guwahati (c. 353 CE): Capital of Kamarupa Kingdom (353–1138).
Puhar (c. 353 CE): Capital of Kalabhra Dynasty (353–600).
Banavasi (c. 353 CE): Capital of Kadamba Empire (353–525).
Linfen (c. 306 CE): Capital of Former Zhao (306–329).
San Marino (301 CE): Capital of Republic of San Marino (1797–1799).
Gyeongju (c. 378 CE): Capital of Silla (378–681), Unified Silla (682–892).
Lanzhou (c. 387 CE): Capital of Western Qin (387–431).
Pingcheng District (c. 387 CE): Capital of Northern Wei (387–533).

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.
Three Kingdoms period (220–280 CE): After the end of the Han, China was divided among the states of Wei, Shu and Wu.
Sui reunification of China (589 CE): The Sui dynasty conquered the southern Chen dynasty, reuniting China after nearly three centuries of division.
Grand Canal (c. 609 CE): The world’s longest artificial waterway. The Sui dynasty joined older canals into a network by about 609 CE; the Yuan realigned it to run directly north to Beijing by 1293, the course it follows between Beijing and Hangzhou today.
Tang dynasty (618–907 CE): The Tang dynasty, ruling from Chang'an, presided over a cosmopolitan golden age of poetry, Buddhism and trade.
Wu Zetian (624 CE – 705 CE): The only woman to rule China as emperor in her own right, proclaiming the Zhou dynasty (690–705) with Luoyang as her capital.
Yayoi period (c. 300 BCE – c. 300 CE): Era when wet-rice farming and metalworking spread to Japan from the continent; the Yoshinogari site is a major settlement.
Silla (c. 57 BCE – c. 935 CE): Kingdom with its capital at Gyeongju, traditionally founded in 57 BCE, that unified most of Korea in the 7th century.