On the Egyptians...only Manetho claims this; he lines up all the dynasties in sequential order to make it appear Egypt went that far back. When everybody knew a

On the Egyptians...only Manetho claims this; he lines up all the dynasties in sequential order to make it appear Egypt went that far back. When everybody knew at the time, and even more so today, that many dynasties ruled concurrently. So...there is that.