After the end of the ice age humans learned that they can plant grass and make food. Many civilizations developed at this time (China, Egypt, and India) but the most notable award goes to Sumer. The first civilization in the world. It started in a small area in between 2 rivers, hence the name “Mesopotamia”. It’s named this for its location in between the Tigris and Euphrates river, both rivers still stand today in the Middle East, specifically modern day Iraq. These rivers supplied fertile land optimal for it to thrive. And thrive it did, with the invention of a writing system which used symbols. Not much of it is known today, as it’s no longer spoken. They’re also credited with the invention of the wheel, advanced irrigation tactics, saws, chariots, harpoons and even Beer. Not much is known about their religion other than the gods enki, enlil, inanna, and utu and sin. They also write the oldest known written story, the epic of Gilgamesh. Which tells the tale of a god, based off of a real king, named Gilgamesh. The temples they built to these aforementioned gods were known as Ziggurats.
There is much more that happened in this civilization, but this was a basic rundown of some highlights