The Meiji Restoration (明治維新, Meiji Ishin; Japanese pronunciation: [mei.(d)ʑi iꜜ.ɕiɴ, meː-]), referred to at the time as the Honorable Restoration (御維新/御一新, Goi(s)shin), also known as the Meiji Renovation, Revolution, Regeneration, Reform, or Renewal, was a political event that restored imperial rule to Japan in 1868 under Emperor Meiji. Although there were ruling emperors before the Meiji Restoration, the events restored practical power to, and consolidated the political system under, the Emperor of Japan. The Restoration led to enormous changes in Japan's political and social structure and spanned both the late Edo period (often called the Bakumatsu) and the beginning of the Meiji era, during which time Japan rapidly industrialised and adopted Western ideas, production methods and technology.
The origins of the Restoration lay in economic and political difficulties faced by the Tokugawa shogunate. These problems were compounded by the encroachment of foreign powers in the region which challenged the Tokugawa policy of sakoku, specifically the arrival of the Perry Expedition under orders from United States president Millard Fillmore. Under subsequent unequal treaties, Japan was forced to open to the West, questioning the shōgun's political authority over maintaining Japanese sovereignty. The Emperor's rebuke of shogunal actions led to the emergence of an ideological divide within the samurai class concerned with their feudal obligations to both the shōgun and the Emperor. Many lower and middle-ranking samurai became shishi ("men of spirit") who were committed to the Emperor's proclamations to expel the barbarians. Factional disputes within the domains led some domains to conflict with the Tokugawa. After some initial setbacks, the domains organised into an anti-Tokugawa alliance, and, led by Satsuma and Chōshū, they overthrew the shogunal system.