The decimal system was invented by:

Explanation

The decimal system was invented by Indian mathematicians around the 6th century CE. The most significant figure associated with this development is the Indian mathematician and astronomer Brahmagupta. He wrote the "Brahmasphutasiddhanta," in which he introduced the decimal number system, including the concept of zero. This system, often referred to as the Hindu-Arabic numeral system, eventually spread to the Islamic world and Europe, becoming the basis for the modern numerical system used worldwide.