"Bunshi-ten" are guiding marks for rendering Chinese into Japanese, that were created by Kiyo Hoshu, the first in Japan to lecture on "Shisho Shicchu" by Chu His, and these were then corrected by Genju KEIAN and revised by Bunshi Gensho.
日本で初めて朱熹の『四書集註』を講義した岐陽方秀が施した訓点を玄樹が補正し、更にそれを文之玄昌が改訂したのが「文之点」である。