This article is about astronomy. It is about the Babylonians, Maya and the Ancient Greeks.
The Babylonians were very advanced astronomers because they had a way of writing so they could record massive volumes of astronomical observations, for which they created mathematical models. With mathematical models, they created calendars, which the can be used to record important things, throughout Babylonia, like business transactions. A man called Ptolemy had a system called the Ptolemaic system. His theory was that earth was in the center of the universe.
How did the Ancient Greeks find out about the earth on an angle? Why did Ptolemy think the earth was in the center of the universe.
I understand why the Babylonians, the Maya and the Ancient Greeks were so interested in space or astronomy.