This document provides an introduction to Greek mythology. It explains that mythology was an early form of science that helped Greeks explain natural phenomena. It then describes the main figures in Greek mythology - the Titans like Cronus who ruled early on, the Olympians like Zeus who overthrew the Titans, and various other minor gods and goddesses. The document outlines the creation myth of the world in Greek mythology and summarizes some of the most important gods like Zeus, Poseidon, and Athena. It also discusses other mythical figures like the Muses, Fates, and various monsters.