TOPIC OF THE WEEKAncient Egypt was a civilization located along the Lower Nile, reaching from the Nile Delta in the north to as far south as Jebel Barkal at the time of its greatest extension (15th century BC). It lasted for three millennia, from circa 3200 BC to 343 BC, ending when Artaxerxes III conquered Egypt. As a civilization based on irrigation it is the quintessential example of an "hydraulic empire."
