Abstract
Previously, it was considered that the Yo homon _??__??__??_ by Genshin _??__??_ (942-10117) can be dated to Year 2 of the Kanna Era _??__??__??__??_ (i. e. 986) on the basis of the colophon appended to the most widely spread edition of the text. However, a different recension of the text found in the collection of the Kanazawa Bunko (Kanagawa Pref.) contains a colophon dated Year 7 of the Kanko Era _??__??__??__??_ (1010). The necessity to re-examine the composition date of the Yo homon has already been pointed out, but no philological investigation into this problem has been undertaken so far. In this paper, I take into consideration old manuscripts of the text which have not been studied hitherto. On the basis of a comparative analysis of these manuscripts, I conclude that the Yo homon must have been compiled in Year 7 of the Kanko Era (1010), which calls for a revision of the previously accepted date.
