over 5000 yr ago it was invented
The Chinese number system was invented in the 4th centaury.
Of course, it was the Aztecs because they invented the number system
India
no
A ditch or canal that that brings water from the Nile to water crops.
Hindu Arabic numeral system was invented by Indian mathematicians.
i invented
in china
India
over 5000 yr ago it was invented
the Arabs
The Babylonians