At first, Egypt and Kush were getting along just great. They traded with each other, helped each other in times of need , and got along great with each other. But then Egypt got greedy and selfish. At about 1520 BCE, the Egyptians took control of these southern lands, called Nubia or Kush. As Egypt's control over the area weakened, the Kingdom of Kush was established about 1070 BCE. Then, under the leadership of Piye (also called Piankhy), Kush moved north in 747 BCE and conquered Egypt.