The abacus was not invented by a Filipino; it was first recorded, well before that area was even properly settled, in many ancient civilisations earlier than 500 BCE, and in Mesopotamia before 2000 BCE. The abacus was likely introduced to the country by traders some time after the 13th century.
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The abacus has been around for millennia, in various countries. No record of the inventor was made.
Abacus was invented by the Chinesethe abacus was also known as the first computer
The Abacus is ancient and the inventor of the original is unknown. Lee Kai Chen did however invent an improved abacus with a movable decimal point and two auxiliary fields for use in complex operations. This abacus was named after himself.
If he isn't the inventor, that probably means that somebody else invented it. Look it up on Wikipedia - it seems that the abacus was already used thousands of years ago.d
the abacus is made by the Egyptian in Egypt.