unlike currencies or countries, culture is a thing that has no definite borders. there will always be overlap of cultures for different groups. Could you provide more context on the problem you are trying to solve?
e.g. the number system we use 1234567890 is knowns as the Hindu arabic system.
"the Hindu numeral system or Hindu–Arabic numeral system is a positional decimal numeral system, nowadays the most common symbolic representation of numbers in the world. It was invented between the 1st and 4th centuries by Indian mathematicians. The system was adopted by Persian mathematicians (Muḥammad ibn Mūsā al-Khwārizmī's c. 825 book On the Calculation with Hindu Numerals) and Arab mathematicians (Al-Kindi's c. 830 volumes On the Use of the Hindu Numerals) by the 9th century. It later spread to medieval Europe by the High Middle Ages."