Longwu

Longwu (18 August 1645 – 4 February 1647) was the era name of the Longwu Emperor of the Southern Ming. It was used for 2 years. On 24 December 1646 (Longwu 2, 18th day of the 11th month), after the Yongli Emperor ascended to the throne, he continued to use this era name, and the following year, the era was changed to Yongli.

From 11 October (14th day of the 9th month) to 21 October (24th day of the 9th month) 1647, Zhang Huashan (張華山), a rebel leader in Huai'an, used this era name to start his uprising.

From 2 March (9th day of the 2nd month) 1648 to 1 March (19th day of the 1st month) 1649, Jin Shenghuan (金聲桓), commander (總兵, zong bing) of Jiangxi, used this era name to start his uprising.

Comparison table
The Gānzhī of each month on the right side of the table was the first day of each month. "(Long)" means that the month has 30 days, and "(Short)" means that the month has 29 days. The numbers in the "leap month" table indicate the X leap month of that year, and the numbers below the first day of each month indicate the corresponding Western calendar date.

Other regime eras that existed during the same period

 * China
 * Shunzhi (順治, 1644–1661): Qing dynasty — era name of the Shunzhi Emperor
 * Qingguang (清光, 1645): Qing period — era name of Hu Shoulong (胡守龍)
 * Jianguo Lu (監國魯, 1646–1653): Southern Ming — era name of Zhu Yihai, Prince of Lu
 * Dingwu (定武, 1646–1664): Southern Ming — era name of Zhu Benli (Zhu Danji), Prince of Han (Doubtful)
 * Dongwu (東武, 1648): Southern Ming — era name of Zhu Changqing, Prince of Huai
 * Dashun (大順, 1644–1646): Xi dynasty — era name of Zhang Xianzhong
 * Vietnam
 * Phúc Thái (福泰, 1643–1649): Later Lê dynasty — era name of Lê Chân Tông
 * Thuận Đức (順德, 1638–1677): Mạc dynasty — era name of Mạc Kính Vũ
 * Japan
 * Shōhō (正保, 1644–1648): era name of Emperor Go-Kōmyō