古今和歌集

The Kokin Wakashū (古今和歌集, "Collection of Japanese Poems of Ancient and Modern Times"), commonly abbreviated as Kokinshū (古今集), is an early anthology of the waka form of Japanese poetry, dating from the Heian period. An imperial anthology, it was conceived by Emperor Uda (r. 887–897) and published by order of his son Emperor Daigo (r. 897–930) in about 905. Its finished form dates to c. 920, though according to several historical accounts the last poem was added to the collection in 914. The compilers of the anthology were four court poets, led by Ki no Tsurayuki and also including Ki no Tomonori (who died before its completion), Ōshikōchi no Mitsune, and Mibu no Tadamine.