After the Genpei War (the final struggle between the Taira and Genji (Minamoto) clans), the Retired Emperor Go-Shirakawain ordered FUJIWARA no Toshinari to compile "Senzai wakashu (Collection of a Thousand Years)."
源平の争乱の後、後白河院の命で藤原俊成が『千載和歌集』を撰進した。