Other contributors have said "How was the chinese invention of abacuse made?" is the same question as "When was the Chinese abacus invented?" If you believe that these are not asking the same thing and should be answered differently, click here
they have invented the compass, paper, porcelain and silk cloth and the abascus, junks, canal locks, paper money, playing cards, printing devices, gunpowder, hello kitty, computers, china, rockets,...
ok, here is the answer. the abacus was invented in approximately 3000BC about 5000 years ago.Who invented it?According to the legend, abacus was invented by a man named Li Sou working for the Yellow...
It is said that abacus is the earliest calculating device. The history goes back to over 3000 years in ancient China. Still they are used in small groceries and shops to calculate the the total...