Prime objective of this lecture is to present on Greek Mythology: Places and How the Earth Began. Olympus was where the gods lived. Zeus married his sister and together they ruled Olympus. There really is a Mt. Olympus and since it was so high up the Ancient Greeks decided it was the realm of the gods. Humans and other creatures could only visit Olympus if they had an invitation. Earth is where the humans lived. Sometimes gods visited Earth, and often fell in love with one of Earth’s inhabitants. Sometimes they would have children who would be half human/half god.