The Egyptians came up with many great inventions. They came up with some major inventions that we still use today like the sail. They also came up with a irrigation system. And the most important thing they made was a written language. The pyramids did many things for the ancient people. They where built for the pharaoh. They were massive tombs for when they died. The shape of them had significance it was to point the pharaoh's spirit to the heavens. The pyramids used to be covers in marble but overtime it has been stolen.