Japan's medieval period (the Kamakura, Nanbokuchō and Muromachi periods, and sometimes the Azuchi–Momoyama period) was a transitional period for the nation's literature. Kyoto ceased being the sole literary centre as important writers and readerships appeared throughout the country, and a wider variety of genres and literary forms developed accordingly, such as the gunki monogatari and otogi-zōshi prose narratives, and renga linked verse, as well as various theatrical forms such as noh. Medieval Japanese literature can be broadly divided into two periods: the early and late middle ages, the former lasting roughly 150 years from the late 12th to the mid-14th century, and the latter until the end of the 16th century.