The feudal system in japan developed during the period.
mongol
kamakura
minamoto
kamikazi

It was the Kamakura period.  The Shogunate was established by Yoritomo Minamoto. During this period, Buddhism flourished and the Samurais proved themselves against the Mongols who invaded Japan twice but failed each time.  Later the Shogun became the actual ruler of Japan.

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explanation:

one central belief of buddhism is often referred to as reincarnation -- the concept that people are reborn after dying. buddhism is a philosophy of life expounded by gautama buddha ("buddha" means "enlightened one"), who lived and taught in northern india in the 6th century b.c.