2560 BCE
The height of the Egyptian Old Kingdom as the Great Pyramid of Giza was constructed under Pharaoh Khufu, representing the pinnacle of ancient engineering and the power of centralized Egyptian state authority.
Civilization & Governance
- Pharaoh Khufu of the Fourth Dynasty presided over the construction of the Great Pyramid at Giza, the largest of the Egyptian pyramids, standing approximately 146 meters tall and composed of an estimated 2.3 million stone blocks.
- The construction of the Great Pyramid required a massive organized labor force, with recent archaeological evidence suggesting the workers were paid laborers rather than slaves, housed in a nearby workers' village.
- Egypt's centralized bureaucracy managed the logistics of pyramid construction, coordinating quarrying, transport, and assembly over a period estimated at roughly twenty years.
Technology & Culture
- Egyptian builders demonstrated advanced knowledge of surveying, mathematics, and engineering, aligning the Great Pyramid to the cardinal directions with remarkable precision.
- Copper tools, wooden sledges, ramps, and levers were among the technologies employed in quarrying and moving limestone and granite blocks, some weighing over 50 tons.
Climate & Environment
- Atmospheric carbon dioxide concentration was approximately 280 parts per million, as later confirmed by ice core analysis.
- The world population was approximately 55 million, with Egypt's Nile Valley supporting one of the densest populations in the ancient world.