The ancient Greeks believed in a flood that destroyed all mankind similar to the account described in the Bible. In the Greek myth, the flood took place during the age of Deucalion 1 (1450 BC). Deucalion 1 and his wife, Pyrrah 1, were warned in advance of the coming deluge and told to construct a chest and fill it with provisions. The source of the coming deluge was the anger of Zeus towards mankind. Zeus had become disgusted at the degeneration of humans, and in particular, the practice of human sacrifice. Zeus assembled the gods and decided to wipe out mankind by water. Deucalion and Pyrrah survived the flood by floating in the chest they built. They floated in the chest for nine days and nine nights and came to rest on a mountain in Phocis. Once Zeus realized that the world was a stagnant pool of water survived only by Deucalion and Pyrrah, he stopped the rains and restored the land. In order to repopulate the world, the gods instructed the survivors to cast stones over their heads. The stones cast by Deucalion became men and the stones cast by Pyrrah became women. This recreation by stone was used to explain the hardness of the human race. There are a great number of differences between the Greek myth and the account of the flood described in the Bible. For example, there is evidence that the biblical flood took place closer to 2500 BC. Furthermore, unlike the Greek myth, Noah and his family were saved along with sufficient animal life to repopulate the planet. However, both accounts maintain that the world was destroyed as the result of mankind's sin, and the human race was saved as a result of a few individuals leading a righteous life.