The first writing system is pictographs. They came from Mesopotamia. On a clay tablet the people drew pictures that were supposed to mean words. The second is cuneiform. This also came from Mesopotamia. On a clay tablet they used special wedges. It was a more efficient way of writing. The third is Hieroglyphs. This came from Egypt. It is close to pictographs. They used pictures that mean things. They usually wrote it on tablets or papyrus.