Astronomy was particularly important to the Greek because it helped them understand the forces of life both practical and theoretical, and Ptolemy helped the Greeks with some progress of the universe around them. Since this was a long period of time ago they didn't have the intelligence advancement as we do now, so with the help of mathematics, science, and astronomy, Ptolemy helped try to explain what the Greeks couldn't. Astronomy became important to the Greeks because Ptolemy taught the Greeks how they can use astronomy to answer their questions. Ptolemy came up with theories about the world and the universe around us. Although the phenomena he thought were unquestionably true turned out not to be, his strong faith in science and astronomy
