Because that was the region of the world where Hindu-Arabic numerals originated from.
Numbers.
Because that's where they originated from.
i call them roman numrals becaus Romans used them and they were numbers
Because that's where they came from.
Because that's were they originated from.
This is because the numbers we use today come from Hinduism.
Because that's where they originated from the Hindu-Arabic numerals of: 0 1 2 3 4 5 6 7 8 and 9
they develope many elem of nour modernd math system
Numbers such as 1, 2, 3, ... are called Arabic numerals. they are the most commonly used numeral system in the world, but others are still used for other purposes e.g. Roman numerals I, II, .., VIII, .., XXIII, ...
Because they originated from India and Arabic traders introduced them into Western Europe during the Middle Ages.
It originated from the Indian subcontinent where the concept of zero was introduced into numbers what today we now call the Hindu-Arabic numeral system.
Because they originated from the Indian subcontinent then across Arabia and then into Western Europe during the Middle Ages thus replacing Roman numerals that was the numeracy system being used at the time.