The ancient Egyptians believed that the kings who ruled them and the spiritual men who were in the kingdom were people of God and they were sent on the earth to take care of the people on earth. They believed that they are the connecting link between heaven and earth and continue their journey even after their death. The Egyptians on the death of such people buried them covered with mounds and special chemicals so as to preserve their bodies.
The Ancient Egyptians started building big structures over such burial places which later came to be known as Pyramids. The first pyramid was made as early as in 2780 BC and is believed to be made on the burial place of king Djoser. This pyramid was a step pyramid and was not a smooth pyramid as most of those which exist in Egypt. The first smooth Pyramid was made for king Snefru between 2680 and 2560 BC. The most famous of the Pyramids, The Pyramid of Giza was built by King Khufu who was the son of king Snefru.
The building of big Pyramids is believed to have stopped in the Sixth Dynasty in around 2150 BC. After this only small pyramids we constructed by the ancient Egyptians. The big pyramids are part of the Seven Wonders of the World and the largest of them is believed to be as high as 455.5ft at the time of construction. The pyramids show how knowledgeable the ancient Egyptians were. Their construction knowledge, mathematical knowledge and astronomical knowledge is symbolized by the Pyramids.