335 B.C.:This Greek philosopher uses lunar eclipses to prove the Earth is ball shaped
Using shadow clocks and the abacus (both invented in 
the ancient Near East before spreading to China), the ..... Fang (7837 BCE) and 
Zhang Heng (78139 CE) that lunar eclipse occurs when the earth obstructs the 
sunlight... [DOC] [TLE] 9 (number) - Wikipedia [PAR] 9 is the natural number following 8 and preceding 10.