What were the inventions of the harappan civilization?

The Harappan civilization, also known as the Indus Valley Civilization, is noted for several significant inventions and advancements. They developed advanced urban planning, including well-constructed drainage systems and standardized baked bricks for building. Additionally, they created a system of weights and measures, and are believed to have used a form of writing, although it remains undeciphered. Their innovations in agriculture, such as irrigation systems, also contributed to their societal complexity.