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.
Sequoyah completed his syllabary around 1821. When it was adopted by the Cherokee Nation, they became the first Native Americans to have their own alphabet and writing system.
