How Pyramids Were Built – World History

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PYRAMIDS

The Egyptian pyramids are ancient pyramid-shaped masonry structures located in Egypt. As of November 2008, sources cite either 118 or 138 as the number of identified Egyptian pyramids.
Most were built as tombs for the country’s pharaohs and their consorts during the Old and Middle Kingdom periods.
The earliest among these is the Pyramid of Djoser, which was built c. 2630–2610 BC during the Third Dynasty.
The most famous Egyptian pyramids are those found at Giza, on the outskirts of Cairo.The Pyramid of Khufu at Giza is the largest Egyptian pyramid. It is the only one of the Seven Wonders of the Ancient World still in existence.

Researchers in Egypt have discovered a 4,500-year-old ramp.Yet while the ramp system is a significant technological discovery, the pyramid connection is still a bit of a stretch.
Archaeologists from the French Institute for Oriental Archaeology in Cairo and the University of Liverpool discovered the ramp system’s remains in an ancient alabaster quarry at Hatnub, a site in the Eastern Desert. The ramp system dates at least as far back as the reign of Pharaoh Khufu, who built the Great Pyramid at Giza.

This system is composed of a central ramp flanked by two staircases with numerous post holes.
Using a sled which carried a stone block and was attached with ropes to these wooden posts, ancient Egyptians were able to pull up the alabaster blocks out of the quarry on very steep slopes of 20 percent or more.
Most Egyptologists already think that Egyptians used ramp systems to build the pyramids, but there are different theories about what types they used.