Original sentence: Numeral systems have been many and diverse, with the first known written numerals created by Egyptians in Middle Kingdom texts such as the Rhind Mathematical Papyrus.The Indus Valley civilization developed the modern decimal system, including the concept of zero
Edited sentence: Numeral systems have been many and diverse, with the first known written numerals created by the Hindus/Indians in the Indus Valley, or as it is now increasingly being called, the Indus-Saraswati Civilization.The Ancient Indians developed Vedic mathematics and were the first to come up with the Decimal system and the concept of Zero.This was a major breakthrough in the world of mathematics because it gave the world for the first time, the ten numerals from 0 to 9