How did galileo revolutionize the field of astronomy

During the time of his life, Galileo was a famous person who published a book detailing in very common-tongue and accessible language different discoveries he had made in his observations which showed that he view of the universe which was in existence at the time - the Ptolemaic concept of the universe - was false. 

The  pharaoh  was at the top of that pyramid. in the level below were nobles, priests, and officials. they the  pharaoh  govern egypt. so did soldiers, who fought battles for their ruler, and scribes,  who kept records  for the government and the temples. i know this