personage who is said to have bestowed it on Chang Liang (_d_. 187
B.C.) in an interview on a bridge. But here again, the style is not
that of works dating from the Ch’in or Han period. The Han Emperor
Kuang Wu [25-57 A.D.] apparently quotes from it in one of his
proclamations; but the passage in question may have been inserted later
on, in order to prove the genuineness of the work. We shall not be far
out if we refer it to the Northern Sung period [420-478 A.D.], or
somewhat earlier.