Zhengtong (era)

Zhengtong (18 January 1436 – 13 January 1450) was the era name (nianhao) of Emperor Yingzong, the sixth emperor of the Ming dynasty, during his first reign, lasting for 14 years.

On 1 September 1449 (Zhengtong 14, 15th day of the 8th month), Emperor Yingzong was captured at the Tumu Crisis. On 6 September (6th day of the 9th month), the Jingtai Emperor ascended to the throne and continued to use the Zhengtong era name. The following year, the era was changed to Jingtai.

Other regimes' era names that existed during the same period

 * China
 * Taiding (, 1448–1449): Ming period—era name of Chen Jianhu
 * Dongyang (, 1449–1450): Ming period—era name of Huang Xiaoyang
 * Vietnam
 * Thiệu Bình (, 1434–1439): Later Lê dynasty—era name of Lê Thái Tông
 * Đại Bảo (, 1440–1442): Later Lê dynasty—era name of Lê Thái Tông
 * Đại Hòa or Thái Hòa  (1443–1453): Later Lê dynasty—era name of Lê Nhân Tông
 * Japan
 * Eikyō (永享, 1429–1441): era name of Emperor Go-Hanazono
 * Kakitsu (嘉吉, 1441–1444): era name of Emperor Go-Hanazono
 * Bun'an (文安, 1444–1449): era name of Emperor Go-Hanazono
 * Hōtoku (宝徳, 1449–1452): era name of Emperor Go-Hanazono