Indus Valley Civilisation
The Indus Valley Civilization was a complex society that existed in ancient India and Pakistan around 3300-1300 BCE. It was one of the world's earliest urban civilizations and was characterized by advanced urban planning, well-organized civic systems, and impressive architectural achievements. The Indus Valley people had a sophisticated system of weights and measures, and a script that has not yet been fully deciphered. They also developed a system of irrigation, which allowed for successful agr