Now, Isaac's son is Jacob, and Jacob is later named by God as Israel. And so this is where the word Israelites come from, and even the modern state of Israel. Now, one of Jacob's son is Joseph, and once again, this is according to biblical accounts, there isn't a lot of historical evidence here. But it's a fascinating story, the story of Joseph, how he is sold by his brothers into slavery, and taken from Canaan to Egypt. But Joseph, once again, fascinating story, is eventually able to rise through the ranks, become the vizier of Egypt, and later, his family, including Jacob, come to Egypt when there's a famine in Canaan. And that is the explanation for the biblical settlement of a significant fraction of the Israelites in Egypt. But then they are enslaved, and according to biblical accounts, they are enslaved for 400 years, over 400 years.