Heikegani (平家蟹, ヘイケガニ, Heikeopsis japonica) is a species of crab native to Japan, with a shell that bears a pattern resembling a human face which is interpreted to be the face of an angry samurai hence the nickname samurai crab.It is locally believed that these crabs are reincarnations of the Heike warriors defeated at the Battle of Dan-no-ura as told in The Tale of …

The Heian period (平安時代, Heian jidai) is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kanmu, moved from the capital of Japan to Heian-kyō (modern Kyoto).It is a period in Japanese history when the Chinese influences were in decline and the national culture matured.

5月1日、中央アメリカ - 大西洋 - 中央アジアにかけて日食発生（1185年5月1日の日食）。 日本. 平氏軍が屋島の戦いに敗れ、海路西へ逃れる。 4月25日（元暦2年3月24日） - 壇ノ浦の戦いに平氏一門が滅亡 、安徳天皇が入水。 源義経の勝報が鎌倉の頼朝に届く。