The abacus was invented several thousand years ago. There was nobody around to take a picture of the inventors. The forerunner of the camera was invented less than 200 years ago.
The Sumarian abacus appeared as early as 2700 BC, The ancient Egyptians and the Persians also used the abacus
On the abacus.
Known as a counting devise, the abacus has been in use for many centuries
China Answer: The abacus has a history going back to 2500 BCE when it was first used in Sumeria.Later and improved versions were in use in Babylonia, Egypt, Persia, India, China, Rome and Greece. There are reports of abaci in India as early as the 1st century CE. The first use of Chinese abacus is not documented until the 14th Century CE although there is evidence in Chinese illustrations that they were in common use as early as 1100 CE. It was similar to the modern abacus. From China the abacus spread into Japan and Korea.Some scholars point to an independent development of the abacus in Mesoamerica by the Mayans and Aztecs. These were of course based on the base 20 not 10 as in Asia and Europe.
A counting frame is the common name for an abacus. An abacus is a centuries old counting and calculating tool that is still widely used by merchants in Asia and Africa.
abacus was not invented by chinese, but by babylonians.
The Babylonians in Babylon
The abacus was invented before cameras and so no photograph exists.
China invented the abacus .
The abacus was developed by the Babylonians in 2000 BC. Though mechanical, it is considered to be one of the earliest computers.
abacus was used in 300 B.C by the Babylonians. (The oldest) always the oldest from long time ago.
The abacus was invented to help people calculate.
the Chinese invented the abacus
China invented the Abacus.
abacus the Chinese invented it
The abacus was invented by the Sumerians in 2,700 BCE, not in 1642 ACE
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