Babylonians 400BC 1.) They saw the development of personal horoscopes and the 12 zodiac signs 2.) They used a sexagesimal system to trace the planets transits by dividing the 360 degrees sky into 30 degrees. 3.) They believed the universe was divided into 6 levels with 3 heavens. (1 ene 400 año aC – 1 jun 393 año aC)
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fecha:
1 ene 400 año aC
1 jun 393 año aC
~ 6 years and 7 months