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at mid-day, although eclipsed by the sun’s
brightness.
It is also asserted, in the book called
Chu-King , that in the time of Yao the year
ˆ
was known to have 365A days, and that he
adopted 365 days and added an intercalary
day every four years (as in the Julian Cal-
endar). This may be true or not, but the
ancient Chinese certainly seem to have di-
56
