Fusō ryakki: the Final Dharma begins in Eishō 7

Eishō 7, mizunoe-tatsu, first month, twenty-sixth day, mizunoto-tori. A thousand monks were invited to the Daigokuden and made to chant the Kannon Sutra in abbreviated reading. An epidemic had spread since last winter, and since the turn of the year it had grown ever fiercer; this was done to remove that calamity. This year, for the first time, [the world] entered the Final Dharma (mappō).