What was the most important event in japans history?

The Meiji Restoration marked the turning point from feudal shogunate-based regime (Tokugawa) to rule under Emperor Meiji of modern Japan at the end of Edo period on January 23, 1868 (Keio calendar: Meiji 1 year January 1). Japan transformed, in what some call a revolution,[nb 1] the way she was governed, industrialized and built military strength such that it was able to take part as a great Asian power on the imperialistic conquest in which many European Empires engaged by late of the 19th century.