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2500 BCE The ancient world World history

Great Pyramid of Giza Built

The Great Pyramid was built in the 26th century BC for Pharaoh Khufu.

Setting the scene

By 2580 BCE, Egypt's Old Kingdom was at its peak under the Fourth Dynasty. Pharaoh Khufu (Cheops) inherited a powerful, centralized state with vast resources and a tradition of pyramid building—his father Sneferu had built three pyramids, including the first true pyramid at Meidum and the Bent Pyramid. Khufu sought to outdo his predecessors and ensure his immortality. The pyramid was both tomb and resurrection machine, designed to launch the pharaoh's soul to join the sun god Ra.

What happened

Construction of the Great Pyramid at Giza began around 2580 BCE and took approximately 20 years. The pyramid originally stood 481 feet tall (now 455 feet due to loss of casing stones), with a base covering 13 acres. It contains 2.3 million limestone blocks averaging 2.5 tons each, plus granite blocks up to 80 tons in the king's chamber. Workers—likely 20,000-30,000 skilled laborers working in rotating shifts, not slaves—quarried stone, transported it on barges, and dragged it up ramps. The precision is extraordinary—the base is level within 1 inch, and sides align to cardinal points within 0.1 degree.

Why it still matters

The Great Pyramid was the tallest man-made structure for 3,800 years (until Lincoln Cathedral in 1311) and is the only surviving Wonder of the Ancient World. It demonstrates the organizational capacity of the Old Kingdom state—mobilizing, feeding, and housing a massive workforce required sophisticated bureaucracy. The pyramid's construction established Giza as a royal necropolis and symbolized pharaonic power. It remains an engineering marvel—how the Egyptians achieved such precision with copper tools is still debated. The pyramid has inspired theories from aliens to lost civilizations, but represents human ingenuity and the power of religious belief to motivate monumental construction.

Background

It remained among the tallest human-made structures for millennia. Even centuries later, this episode remains a reference point for how empires rise, fracture, and transform.

Sources

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