Events such as the enacting of the Konden einen shizai Law (a law allowing farmers who cleared new lands to own them permanently) in the year 743 made the private ownership of reclaimed farm land possible, and paddy fields were reclaimed in Tashibu Township by Amabiki-jinka Shrine and Usa-jingu Shrine before the formation of Tashibu Manor in the first half of the 11th century.
743年の墾田永年私財法などによって、開墾した田畑の私有が認められるようになると、田染郷でも雨引神社や宇佐神宮によって水田が開墾され、11世紀前半には田染荘が形成された。