Greeks Greek beliefs changed over time. In the beginning the Greeks believed strongly in the gods. These ideas were very similar to those of earlier peoples (Craig, Graham, et. al. 57). The Greek gods shared many of the same characteristics of the Mesopotamian deities (Craig, Graham, et. al. 57). The Greek pantheon consisted of the twelve gods who lived on Mount Olympus (Craig, Graham, et. al. 83). These gods were: -Zeus, the father of the gods, -Hera, his wife, -Zeus’s siblings: Poseidon, his brother, god of seas and earthquakes, Hestia, his sister, goddess of the hearth, Demeter, his sister, goddess of agriculture and marriage, -Zeus’s children: Aphrodite, goddess of love