The medieval text chronicles events of the Kamakura Shogunate from Minamoto no Yoritomo's rebellion against the Taira clan in Izokuni of 1180 to Munetaka Shinnō (the 6th shogun) and his return to Kyoto in 1266. The work is also called after the Late Hōjō family of Odawara (Kanagawa prefecture), in whose possession it used to be before it was donated to Tokugawa Ieyasu. It originally consisted of 52 chapters, but the 45th is lost. In spite of its many flaws, the document is considered the most important existing document concerning the Kamakura period.