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Scientific modeling

The Earths and its People (Important ppl) ch 12 13

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World History
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1.? Ptolemy ? Geocentric Theory - 90-168 C.E. ? He was the Egyptian astronomer (and other careers, mathematician, astrologist, etc.) that created the cosmological model for his geocentric theory (the Earth is the center of the universe, everything rotates around it).? Islamic scientists (Nasar al-Din) were greatly influenced by Ptolemy?s theory and even came up with their own explanations and models of the geocentric theory. ? 2.? King Lalibela ? Sculpted Churches - r. 1180-1220 C.E. ? He was the ruler of the Christian kingdom of Ethiopia. ??As part of his new capital, Lalibela, he directed Ethiopian sculptors to carve eleven churches out of solid rock, each commemorating a sacred Christian site in Jerusalem.? They were constructed from 1200-1230 C.E. approx. ?
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