the invention of the plow was extremely useful to history. instead of having to plant the plants by hand it made the process much faster by doing it for you.
the top of the social structure was government officials, priests and other extremely important people. The middle class would be your average person like somebody who hunts or perhaps a farmer or a merchant. the lowest class would be a slave. The civilization was ruled by a king and other government officials.
Sumerians worked to please there gods and goddesses by making art that they think the gods will appreciate. they make statues because they think the gods will appreciate them and they will have a higher chance of going to heaven.
metal workers make all sorts of items such as weapons. they also make things people need like cups. Also they make things such as jewelry and decorative items. The Sumerians believed music brought joy to the gods and made the gods happy.
the first use of the wheel was for making pottery by spinning the clay on the wheel. sledges were flat bottomed carts use to pull things. once they invented the wheel they thought it would be a good idea to put them on a sledge, and it was a good idea.
cuneiform was the written language the Sumerians learned ti write with. it contained over 2000 symbols. pictographs are pictures that stand for real life things like for example, a animal.