Great drought was in 1180 in western Japan. During the three summer months was only eighteen days with little rain, and virtually no rice harvest gathered. In Western Japan, including Kyoto City, confusion reigned because of the terrible famine. The author of the famous book, then visited the city of Kyoto "Kojiki", he wrote, that he counted on the streets of more than 42,300 people dead. In the eastern part of Japan, where the harvest was excellent, supporters Mamamoto family took advantage of this terrible tragedy, revolted and threw the ruler Taira, which was under the rule of the country. And although the number of troops Mamamoto was small, the war ended in their favor almost instantly. So the soldiers from eastern Japan, where there was an abundant harvest, defeated the strongest army in Western Japan, affected by drought and famine.