Kyōgen is deemed an official art of the Tokugawa Shogunate and becomes more formalized. Families of kyōgen performers are consolidated into into three schools: Ōkura, Izumi, and Sagi. Shogunal requirement result in scripts being documented. The first full performances scripts (Ōkura Tora’akira-bon, 1642) and theoretical writing on kyōgen (Waranbe-gusa, 1651), are written by Ōkura Tora’aki(ra).