Why do Egyptian pyramids always have a brown outer layer?

Egypt is famous for many pyramid thousands of years old with magnificent architecture. These huge structures hide many secrets about the ancient Egyptians.When visiting the pyramids of EgyptMany visitors cannot help but be overwhelmed by the huge size. They had many questions about this magnificent structure.Among these, many are curious about the original appearance of pyramids The famous country of Egypt is whether it is sandy brown like today or not.Before this question, experts have studied, studied historical documents, official records as well as examined the pyramids. Thanks to that, they found the solution.According to experts, initially, the pyramids in Egypt did not have a sandy brown color. In fact, during construction, the ancient Egyptians covered the top layer of the pyramid with fine white limestone.Mohamed Megahed, an assistant professor at the Institute of Egyptology at Charles University in Prague, said that thanks to the limestone cladding, the Egyptian pyramids were smooth and bright white in the sun. Therefore, people can see the prominent pyramids from afar.It is estimated that the ancient Egyptians used millions of tons of limestone to build the pyramids. However, over thousands of years of existence, the smooth, white limestone outside the pyramids has been lost.Experts have found some evidence that the limestone covering the outside of the pyramid began to be ploughed off during the reign of pharaoh Tutankhamun (from 1336 BC – 1327 BC). This action continued until the 12th century.In 1303, a violent earthquake caused some of the limestone to loosen and peel off.In addition, under the influence of time and environmental conditions, the limestone cladding is worn out. For the above reasons, the pyramids still standing today do not have the original bright white appearance, but have a sandy brown color.Invite readers to watch the video: The river helps solve the mystery of how the Egyptians built the pyramids. Source: Kienthuc.net.vn.

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