The Egyptians did not use the wheel at the time of the pyramids, an invention which would have been limited on softer ground and under heavy loads. It is a myth that sleds were dragged manually, sometimes with the help of "pack animals", on flattened roads. Some of the existing trails were equipped with "wooden cross beams" to support the sled. How the massive blocks were raised to the height of the rising pyramid is not understood with certainty. The well-built pyramids certainly demonstrated that the ancient Egyptians were well civilized. Many individuals at that time did not know how to build formidable