Apollo was a god who seemed to be skilled at everything except love. He was the god of music and light, as well as a teacher of medicine. He told of the future and even transformed himself into a dolphin. As the son of the powerful Zeus, and a twin to the goddess Artemis, Apollo spent much of his time chasing the things he wanted. The one thing that always seemed to get away, however, was the woman he loved. One woman was turned into a tree just as he reached her, while another was murdered at his command for falling in love with another. Apollo played an important part in the Trojan War. A series of sports competitions, known as the Pythian Games, was held every four years to honor him.