Samurai
Toyotomi Hideyoshi won many wars against other clans. He made Japan one country and developed a social caste system. It was completed by Tokugawa Ieyasu and the rulers after him. Between the wars, many samurai had always worked on farms. Hideyoshi said that all samurai must either live on farms or live in castle towns with other warriors. He also made a law that only samurai could have swords.