The Samurai warriors emerge as the ruling class in Japan.
This is the beginning of the Shogunate. There were ultimately (Bakufu) in Japan:
Kamakura 1192–1333 CE
Muromachi 1336–1573 CE
Tokugawa (Edo) 1603–1868 CE
The Shogunate, (in parallel to the reigns of the Roman Empire) although romanticized, was a feudal military dictatorship.