Which 2 groups of people produced new ideas in the field of mathematics

Throughout history, various groups of people have contributed new ideas to the field of mathematics. Two notable groups are:

1. Ancient Greeks: The ancient Greeks, including mathematicians like Pythagoras, Euclid, and Archimedes, made significant contributions to mathematics. They developed concepts such as geometry, number theory, and algebra. Euclid's Elements, a compilation of geometric principles and proofs, remains a foundational work in mathematics.

2. Indian Mathematicians: Ancient Indian mathematicians, particularly during the Classical period (around 400 BCE to 1200 CE), made groundbreaking discoveries in mathematics. They developed the decimal system, including the concept of zero, which revolutionized numerical calculations. Indian mathematicians also made strides in trigonometry, algebra, and infinite series, as seen in the works of Aryabhata, Brahmagupta, and Bhaskara.

These groups, among many others, played crucial roles in shaping and advancing mathematics as we know it today.