The ancient Mesopotamians invented a lot of important things, such as the sewer systems. Imagine life today without toilets. Where would we be? I know you don't want to think about it ,but if it weren't for ancient Mesopotamians we wouldn't have toilets. Other people didn't have toilets. This made life a lot easier. What if all you could do was throw your poop out the window so it didn't stink up your house? This made the streets nasty and stinky. Imagine going down the street and getting hit with someone's poop that they just threw out the window. We still have sewers today.
If you couldn't tell next is irrigation. Irrigation was most likely the most important aspect of Mesopotamian life. Irrigation was how they got a surplus of food. They used their environment