Assertion: triangle | /r/HasProperty | known for century
Facets:
value: before that
type: TEMPORAL
value: to persian and chinese philosophers
type: TRANSITIVE-OBJECT
Source sentences:
text: Pascal discovered the triangle, which had been known for centuries to Persian and Chinese philosophers, when he was studying the algebraic expansion of the expression (
text: It is from the front of Chu Shi-Chieh's book "Ssu Yuan Yü Chien" (Precious Mirror of the Four Elements), written in AD 1303 (over 700 years ago, and more than 300 years before Pascal!), and in the book it says the triangle was known about more than two centuries before that.