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It should be noted that the brief descriptions given are just that "brief." Their purpose is to hopefully instill a little curiosity and encourage the reader to seek out further knowledge on these people and topics.
Clearly their number system was a base ten system; however, they used a simple grouping system rather than a positional system. They were originally four-wheel vehicles drawn by slow-moving animals.
Wheeled vehicles first appeared in Mesopotamia (the region between the Tigris and the Euphrates Rivers ) around 3000 B. The wheels on the earliest vehicles were fixed to the axles rather than rotating around a hub.
It was finished with an outer casing which was used to smooth the surface. Some interesting data: it is 756 feet long on each side, 480 feet high and is composed of approximately 2,300,000 blocks of stone, each averaging 2 1/2 tons in weight. This is a positional number system based on sixty, rather than ten.
Despite the limited surveying tools of the time, it is reported that no side is more than 8 inches different in length than another. The Sumerians represented the integers using cuneiform wedge patterns.The Great Pyramid was built by the Egyptian pharaoh Khufu (also known as Cheops) of the Fourth Dynasty around the year 2500 BCE to serve as a tomb for when he died.