Acc. to Greek mythology Apollo/Helios drives across the heavens with his charriot and causes sunrise and sunset. In Roman mythology his name is Mars. Mars was the Roman god of war, and one of the most prominent and worshipped gods. He was the beginning and ending of war. Mars was the god of young man and their activities, primarily. In the early Roman history he was a god of spring, growth in nature, fertility, and the protector of cattle.