ancient egypt By owen.stel@student.nhlstenden.com 5000 BCE agricultural development 3100 BCE upper and lower unification of Egypt Period: 3100 BCE to 332 BCE span ancient egypt Period: 2700 BCE to 2200 BCE old kingdom 2600 BCE development of the peramids 2150 BCE hyroglyphics Period: 2040 BCE to 1782 BCE middle kingdom 331 BCE conquest of alexander the great Period: 1550 to 1071 new kingdom