During the Edo period Japan was quite peaceful. The linked page shows nothing between 1638 and 1863. The Tokugawa shogunate started a little earlier (1600ish) a

During the Edo period Japan was quite peaceful. The linked page shows nothing between 1638 and 1863. The Tokugawa shogunate started a little earlier (1600ish) and marked the start of a long period of internal peace. That's 200-250 (depending on how you count some of the events in 1600-1640 -- I think they had limited impact on the home islands?) which ended with the Meiji Restoration.