What was the greatest achievement of Classical Indian Empires?

Ancient India was home to two of the world's first cities, Harappa and Mohenjo-Daro. These cities had stone buildings, multiply stories, and sewage systems! India was one of the very first civilizations to use algebra and calculus. The number zero was invented in Ancient India by a man named Aryabhatta.

im the bozz no matter what

first it was savannah, then it was augusta, louisville, milledgeville, then atlanta.

i live in georgia.

-seth