Several era names 年號 were in use during the period 1850 - 1950 by different state authorities. Since era years did not always begin on January 1st, there is only a rough correspondence between era years and the Western calendar.
Chinese Era Names
Dàoguāng 道光
- The Dàoguāng Era began in 1821 and ended on January 31, 1851. It was the reign of the Dàoguāng Emperor, Aixin-Jueluo Miánníng 愛新覺羅綿寧 (1820 - 1850).
- This era spans the 1820s, 1830s, 1840s, and 1850s.
Xiánfēng 咸豐
- The Xiánfēng Era began on February 1, 1851 and ended on January 29, 1862. It was the reign of the Xiánfēng Emperor, Aixin-Jueluo Yizhu 愛新覺羅奕詝 (1831 - 1861).
- This era spans the 1850s and 1860s.
Tóngzhì 同治
- The Tóngzhì Era began on January 30, 1862 and ended on February 5, 1875. It was the reign of the Tóngzhì Emperor, Aixin-Jueluo Zaichun 愛新覺羅載淳 (1861 - 1875).
- This era spans the 1860s and 1870s.
Guāngxù 光緒
- The Guāngxù Era began on February 6, 1875 and ended on January 21, 1909. It was the reign of the Guāngxù Emperor, Aixin-Jueluo Zàitián 愛新覺羅載湉 (1871 - 1908).
- This era spans the 1870s, 1880s, 1890s, and 1900s.
Xuāntǒng 宣統
- The Xuāntǒng Era began on January 22, 1909 and ended on February 12, 1912. It was the reign of the Xuāntǒng Emperor, Púyì 溥儀 (1906 - 1967).
- This era spans the 1900s and 1910s.
Year of the Republic 民國
- The Year of the Republic began with the Republic of China on January 1, 1912 which is Year 1 of the Republic. This system was discontinued in the People's Republic of China in 1949, but continues to be used in Taiwan and in overseas Chinese communities.
- This era spans the 1910s, 1920s, 1930s, 1940s, 1950s and beyond.
Japanese Era Names
Kaei 嘉永
- The Kaei Era began on February 28, 1848 and ended on November 26, 1853. The reigning emperor was Kōmei-tennō 孝明天皇.
- This era spans the 1840s and 1850s.
Ansei 安政
- The Ansei Era began on November 27, 1853, and ended on March 17, 1860. The reigning emperor was Kōmei-tennō 孝明天皇.
- The era spans the 1850s and 1860s.
Man'en 万延
- The Man'en Era began on March 18, 1860 and ended on February 9, 1861. The reigning emperor was Kōmei-tennō 孝明天皇.
- This era was part of the 1860s.
Bunkyū 文久
- The Bunkyū Era began on February 10, 1861 and ended on February 7, 1864. The reigning emperor was Kōmei-tennō 孝明天皇.
- This era was part of the 1860s.
Genji 元治
- The Genji Era began on February 8, 1864 and ended on January 26, 1865. The reigning emperor was Kōmei-tennō 孝明天皇.
- This era was part of the 1860s.
Keiō 慶応
- The Keiō Era began on January 27, 1865 and ended on October 23, 1868. The reigning emperors were Kōmei-tennō 孝明天皇 and Meiji-tennō 明治天皇.
- This era was part of the 1860s.
Meiji 明治
Taishō 大正
- The Taishō Era began on July 30, 1912 and ended on December 25, 1926. The reigning emperor was Taishō-tennō 大正天皇.
- This era spans the 1910s and 1920s.
Shōwa 昭和
- The Shōwa Era began on December 25, 1926 and ended on January 7, 1989. The reigning emperor was Shōwa-tennō 昭和天皇.
- This era spans the 1920s, 1930s, 1940s, 1950s up to the 1980s.
Taiping Era Names
Yuánnián 元年
- The Yuánnián Era began in August 1851 and ended in May 1864.
Era Names of Manchukuo
Dàtóng 大同
- The Dàtóng Era began in 1932 and ended in 1934.
Kāngdé 康德
- The Kāngdé Era began on March 1, 1934 and ended in August, 1945.