Xin Dynasty

State · 6–29 CE · at its largest around 6 CE

Wang Mang, a Confucian official turned emperor, tried to recreate an idealised antiquity by banning private land sales and the slave trade and issuing strange new coinages. Yellow River floods and the Red Eyebrows rebellion swept his utopian experiment away.

On its lands while it lasted

Dong Son culture (c. 1,000 BCE – c. 100 CE): Bronze Age culture of northern Vietnam's Red River valley, famous for large decorated bronze drums traded widely across Southeast Asia.
Ujjain (c. 600 BCE – c. 405 CE): Capital of Janapada of Avanti (600 BCE–405 BCE), Western Satraps (43–405).
Plain of Jars (c. 500 BCE – c. 500 CE): Thousands of large stone jars scattered across the Xiangkhoang Plateau in Laos, associated with Iron Age mortuary practices.
Co Loa Citadel (c. 256 BCE – c. 965 CE): Capital of Âu Lac (256 BCE–207 BCE), Ngô Dynasty (947–965).
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.
Goguryeo (c. 37 BCE – c. 668 CE): Kingdom traditionally founded by Jumong in 37 BCE that grew to rule northern Korea and Manchuria.
Gungnae (c. 3–427 CE): Capital of Goguryeo (3–427).