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Mysteries and Facts on Pyramids in Egypt

Who Built the Pyramids?Many movies, books and other works of historical fiction centering around life in ancient Egypt particularly the oft reimagined biblical story of Moses depict the pyramid builders as slaves. Workers' villages included not only craftsmen relating to the pyramid's construction but also cooks, bakers, priests and medicine men.

When Were They Built?Though the pyramids are one of the most recognizable symbols of the ancient Egyptian pharaohs, these immense, complex tombs were only built during distinct portions of the ancient Egyptian civilization.

How Were Pandora Christmas Bracelets They Built?One of the enduring mysteries of the pyramids centers around how they were constructed. The fact that they have endured for more than 4,000 years is testament enough to their sound construction, but archeologists and structural engineers also marvel at the precise sizing of the individual blocks. Archaeologist believe the limestone blocks were quarried and shaped using copper chisels, the hardest metal known to the Egyptians at that time. While films often depict thousands of workers carrying or pulling the limestone blocks, which weigh an average of 2.5 tons, the blocks were typically floated from the quarry sites to the construction locations during the frequent Nile River floods.

What Are They Made Of?For centuries of Egyptology scholars, the physical composition of the pyramids had never been questioned. Elements that shouldn't be present in limestone or occur naturally at the site were dismissed as remnants of renovation efforts. As structural science and analytical tools advanced, archeologists began to notice compositional anomalies in the Pandora Christmas Charms pyramids that were increasingly difficult to reconcile. In 2006, Michel Barsoum, a materials engineering professor at Drexel University, undertook extensive chemical and X ray analysis of both external and internal sections of the pyramid stones. His results that some portions of the pyramids are actually made from concrete, not Pandora Hearts Aflutter Fan Charm stone are slowly upending the popular image of large groups of workers painstakingly pushing the stone blocks up the sides of the pyramids.