Sumerians in Mesopotamia, Babylonians, and the ancient Egyptians recognized the need for counting and measuring ... private property arrangements as well as systems for commerce and public management.

But the ancient Greeks certainly had numbers. In fact, they had what was in some ways a much more elegant system than the ...

Humans started counting tens of thousands of years ago, but when did they begin figuring out advanced arithmetic, algebra and even calculus?

The absence of modern-day calculators did not stop ancient cultures from performing ... The most unusual manual counting device may well be the quipus used by various Andean communities in South ...