Zero was used as a number in India long before it appeared in Europe.

The longer version

A symbol for nothing is more than an empty space. Used as a placeholder it keeps columns honest, so one hundred and one stay distinct; used as a number it can be added, subtracted and reasoned about, which opens the door to negative values and algebra.

Treating it as a real quantity took confidence, since everyday counting starts at one. Indian mathematicians set out rules for working with it, and those rules travelled with the rest of the number system. European merchants and scholars were slow to accept the new signs, preferring familiar counting boards and old ways of writing accounts.

Where this entry sits

This set looks at ancient civilizations, old inventions, trade routes, calendars, and the ordinary objects people once used every day. Nothing here is advice or opinion, just short notes about how daily life used to be organised long ago. The full list sits on the History page, where every entry is listed in order.