eisei
Eisei is a Japanese era name that corresponds to the years 1868 to 1872 in the Gregorian calendar. It was the first era of the Meiji period, which marked the beginning of Japan's modernization and the end of the feudal system. The era name "Eisei" translates to "Enlightened Rule" and was chosen to signify the new era of enlightenment and progress that Japan was entering. The Eisei era was succeeded by the Meiji era, which began in 1868. This era is notable for its political and social changes, including the abolition of the han system, the establishment of the Meiji Constitution, and the opening of Japan to foreign trade and influence. The Eisei era is also remembered for its natural disasters, including the Ansei-Eisei earthquake and the Meiji Sanriku tsunami, which caused significant loss of life and destruction. Overall, the Eisei era was a period of significant change and upheaval in Japanese history.