As the last words of Genesis fade out and the opening of Exodus fades in, we quickly realize that we are no longer in the same Egypt that Joseph ruled. 400 years have passed and the children of Israel have changed in two significant ways. First, they have multiplied immensely. When they came to the country they were a small clan of 70 people. Now they are a vast nation of so many people that the Pharaoh had to take notice of them as a potential threat to Egyptian national security. This leads to the second major change. The people had become overpowered and enslaved by the Egyptians.