What were the earliest civilizations to start using umbers ? ?
hello Soon after language develops, it is safe to assume that humans begin counting – and that fingers and thumbs provide nature’s abacus. In Egypt, from about 3000 BC, records survive in which 1 is represented by a vertical line and 10 is shown as ^. The Egyptians write from right to left, so the number 23 becomes lll^^ The Babylonians (1750 BC) use a numerical system with 60 as its base. This is extremely unwieldy, since it should logically require a different sign for every number up to 59 (just as the decimal system does for every number up to 9). Through the Babylonian pre-eminence in astronomy, their base of 60 survives even today in the 60 seconds and minutes of angular measurement, in the 180 degrees of a triangle and and in the 360 degrees of a circle. Much later, when time can be accurately measured, the same system is adopted for the subdivisions of an hour. The Babylonians take one crucial step towards a more effective numerical system. They introduce the place-value concep
