The abacus has a long history. It stretches for thousands of years. The first abacus was invented about 5000 years ago. Some historical experts believe that the abacus was invented by ancient Chinese. Others are of the opinion that the abacus was invented by the Babylonians or the Egyptians. However, all these statements are supported by historical evidence, such as archaeological excavations and ancient texts. It is possible that many cultures may have invented the abacus in an independent and more or less simultaneously.
The metering device was the first human hand and fingers. The reason why we use the decimal system is that there are 10 fingers (both hands together) and so it is very easy to count if 10 is the base. Later, the man began to use natural objects and markings to count and calculate. Higher amounts [exceeding 10] may not be easily counted on the fingers. So the various natural objects like stones and sticks were used.
Traders do not need just need a way to count the goods bought and sold, they also need a method to perform calculations. This was achieved with the help of counting cards. Until the advent of a system of adequate number, counting boards were very popular. The abacus has its origins in a kind of card counting.
Timeline of the history of the abacus:
3000 BC: an early form of abacus was born in East
1000 BC: Chinese start using card counting
500 BC: the Romans and Greeks used counting cards
300 BC: Abacus is widely used as a counting device in China
500 AD: The abacus is used in Europe
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