1 Jan 2400 Jahr v. Chr. - Abacus Invented

Beschreibung:

1. As far as we know, this was the first calculating device ever.
2. Predating Pascal by a few millenia, it shows that even early civilizations were inventing tools to help them do their accounting.
3. Still used today, though they're becoming increasingly obsolete with pocket calculators becoming more accessible

Zugefügt zum Band der Zeit:

Datum: