Wang Mang established a new dynasty, also known as Xin Mang. In the first year of Yongzheng (BC 16), Wang Mang, the consort, made her capital. After Wang Mang, he insisted on Han politics. In the first year (AD 8), Wang Mang proclaimed himself emperor on behalf of the Han Dynasty, that is, he took Xin as the country name. When People's Republic of China (PRC) was founded, it inherited the territory of the Western Han Dynasty, with the sea in the east and south, Lake Balkhash and Green Ridge in the west, Yunnan and Guangxi in the southwest, Viet Nam in the north and south and central, and deserts in the north and north of the Korean Peninsula in the northeast.

In view of the disadvantages of the late Western Han Dynasty, Wang Mang carried out retro reform, which intensified class contradictions, ethnic contradictions and internal contradictions of the ruling class, leading to the Red Eyebrow and Greenwood Uprising. In the first year of restarting (AD 23), outlaws invaded Chang 'an and the new dynasty perished.

Extended data:

After Wang Mang came to power, he carried out a series of monetary reform policies, put forward the "ancient reform", restored the system of "distributing coins" and "knife coins" that had been abolished for more than 200 years, and carried out four major monetary reforms, so that six coins and twenty coins appeared, so that the monetary system at that time was very chaotic. This monetary system is still dominated by copper coins, the lowest unit is not springs, and the rest are mostly virtual coins.

Although coins were short in this period, they reached a peak of coin art, and the main coins were "one knife and five thousand", "one knife and five hundred" and "eleven thousand national treasures".

Baidu Encyclopedia-Wang Mang