Feudalism is when samurai warriors started to attack other families that didn't pay taxes to the government. The cause of feudalism is when estate owners started to not pay taxes to the government and hired samurai warriors to protect themselves and attack others. There were different forms of art.One form is calligraphy. Another form is gardening or growing plants. One last form is landscapes growing different things and different animals. The social structure was labeled into five groups. With emperor being the highest because he was the ruler it then went, shogun an daimyo because they were the actual ruler of Japan, samurai warriors because they were the warriors of Japan, peasants and artisans because the workers made up the largest class., and merchants because they produces no goods to the society.