@HayTay
Very interesting facts
@ankhor and HayTay
Well here are some more interesting facts, as far as I know and learned in school.....

The current Arabic digits were originally Indian digits, I guess Arabs got them while trading with the Indians thousands of years ago. I don't know what Indians use now, though

The current English digits were actually the Arabic digits, I guess they appeared when Arabs invaded Spain and spread their culture there.

And of course the English digits were originally the Roman ones.