
After toppling the last rulers of the Tenth Dynasty, Mentuhotep began consolidating his power over all of Egypt, a process which he finished by his 39th regnal year. During Mentuhotep II's fourteenth regnal year, he took advantage of a revolt in the Thinite Nome to launch an attack on Herakleopolis, which met little resistance.

The struggle was to be concluded by Mentuhotep II, who ascended the Theban throne in 2055 BC. To the north, Lower Egypt was ruled by the rival Tenth Dynasty from Herakleopolis. The Theban Eleventh Dynasty only ruled southern Egypt from the First Cataract to the Tenth Nome of Upper Egypt.

Towards the end of this period, two rival dynasties, known in Egyptology as the Tenth and Eleventh, fought for control of the entire country. Political history Periods of ancient Egypt Īn Osiride statue of the first pharaoh of the Middle Kingdom, Mentuhotep IIĪfter the collapse of the Old Kingdom, Egypt entered a period of weak pharaonic power and decentralization called the First Intermediate Period. The Middle Kingdom was followed by the Second Intermediate Period of Egypt, another period of division that involved foreign rule of Lower Egypt by the Hyksos of West Asia. During the Middle Kingdom period, Osiris became the most important deity in popular religion. Some scholars also include the Thirteenth Dynasty of Egypt wholly into this period, in which case the Middle Kingdom would end around 1650 BC, while others only include it until Merneferre Ay around 1700 BC, last king of this dynasty to be attested in both Upper and Lower Egypt. The concept of the Middle Kingdom as one of three golden ages was coined in 1845 by German Egyptologist Baron von Bunsen, and its definition evolved significantly throughout the 19th and 20th centuries.

The kings of the Eleventh Dynasty ruled from Thebes and the kings of the Twelfth Dynasty ruled from el-Lisht. The Middle Kingdom lasted from approximately 2040 to 1782 BC, stretching from the reunification of Egypt under the reign of Mentuhotep II in the Eleventh Dynasty to the end of the Twelfth Dynasty. The Middle Kingdom of Egypt (also known as The Period of Reunification) is the period in the history of ancient Egypt following a period of political division known as the First Intermediate Period.
