Answer: B. A writing system
Explanation: The Sumerians are the first known world civilization, which emerged on the land of Mesopotamia. In addition to the Sumerians, there were other Mesopotamian civilizations after, but one of the most important inventions or achievements that had an impact on the development of later civilizations was the writing system. It can be said that this invention is of great importance in general. According to some archaeological finds, the oldest Sumerian writing system on clay tablets dates back to the 8,000 years BC. To write on clay tablets, a Sumerian cuneiform was used, originating from pictographs and some other symbols used to display trade goods. The cuneiform was created from the need for trade because it represented a system of writing using wedge-shaped symbols, which were simpler than image symbols.
I believe it was <span>Mansa Musa, but does this question have choices with it? it would help me a lot if you could add those. </span>
Answer: This war was fought in part because a lot of people wanted Cuba, one of the last remaining bits of the former Spanish Empire, to become independent. Many Americans also wanted their country to get a colonial empire. All of these colonies, except for Cuba, would become U.S. colonies at the end of the war.
