jeff rae r.calumpang
The abacus was invented to help people calculate.
The abacus was invented before cameras and so no photograph exists.
The abacus was invented by the Sumerians in 2,700 BCE, not in 1642 ACE
jv
abacus was not invented by chinese, but by babylonians.
China invented the abacus .
jeff rae r.calumpang
The abacus was invented to help people calculate.
the Chinese invented the abacus
abacus the Chinese invented it
The abacus was invented before cameras and so no photograph exists.
The abacus was invented by the Sumerians in 2,700 BCE, not in 1642 ACE
China invented the Abacus.
jv
the country that invented the abacus is China Actually it is unknown as the abacus seems to predate recorded history and different versions were independently invented in various places.
the country that invented the abacus is China Actually it is unknown as the abacus seems to predate recorded history and different versions were independently invented in various places.