A powerful group of samurai overthrow the Shogun, Sakamoto Ryoma helped Japan emerge from feudalism into a unified modern state, the last Shogun, Tokugawa Yoshinobu, was overthrown, in 1867 Emperor Mutsuhito who was once just a figurehead, now takes full power, Emperor Mutsuhito was only 15 years old and named his reign Meiji - "enlightened rule"