1800BC到了这个时候,老巴比伦人采用了先进的数学运算,例

1800BC到了这个时候,老巴比伦人采用了先进的数学运算,例如乘法,除法和平方根。 他们的十二进制系统基于12和6来测量时间,至今仍在使用。
原文:1800BC    By this time the Old Babylonians employed advanced mathematical operations such as multiplication, division and square roots. Their duodecimal system, based on 12 and 6 to measure time, is still used today.