With the creation of the first people, the world entered what the Ancient Greeks referred to as the Golden Age. It was a time of peace and prosperity for the first people. A time before the evils of the world were released to threaten them.
Often, we think of the evil titans and the mad king Cronus, but in fact, people on Earth never had it as good as they would under his reign and that of the titans. It was the Olympians, under Zeus, who would cause the people unimaginable suffering and introduce evil to the world.