Answer & Explanation:
Yo, back in the day in South Asia (now Pakistan and India), there were these cultures called the Indus Valley civilizations. They were around from 3300 BCE to 1300 BCE and were super good at farming, city planning, and trade. Their cities were tight and had cool stuff like sanitation systems. Their writing was hella tough to understand, but they were advanced in other things like metallurgy, pottery, and weaving. These guys hooked up with other civilizations in the area.
Their writing system is mad interesting because nobody could totally understand it. They wrote it on things like pottery and seals, but people didn't know what it meant. Some people think it was used to write stuff down and others think it was for religious reasons.
People still argue about what happened to these guys and why they disappeared, but it's probably because of a mix of things like the weather getting messed up, the environment getting whack, and people from other places taking over.
The Indus Valley Civilization was one of the most important ancient civilizations in the Indian subcontinent from 2600 BCE to 1900 BCE. They were good at making organized cities with fancy drainage systems and cool baths. They were lit back in the day and people still talk about them today because of their crazy achievements and writing that nobody can read.