Narmer (Reign: ca. 2650 B.C. — 2632 B.C.)
Narmer, also known as Menes, unified Upper and Lower Egypt for the first time and, therefore, founded the first dynasty of a unified Egypt.
Khasekhemwy (Reign: 18 years, ca. 2690 B.C.)
Khasekhemwy ended the infighting of the second dynasty and reunited Upper and Lower Egypt after a civil war between the followers of the gods Horus and Set.
Djoser (Reign: 19 or 28 years, ca. 2670 B.C.)
Djoser (also read as Djeser and Zoser) is the builder of the Step Pyramid and is believed by most Egyptologists to be the founder of the third dynasty during the Old Kingdom.
Huni (Reign: ca. 2650 B.C. – 2632 B.C.)
Huni was the last pharaoh of the third dynasty during the Old Kingdom period.
Khufu (Reign: 2589 B.C. – 2566 B.C.)
Khufu was the second pharaoh of the fourth dynasty and is generally accepted as having commissioned the building of the Great Pyramid of Giza, one of the Seven Wonders of the Ancient World.