This would be oil. Oil is a topic that has been hotly debated as it needs to be replaced by renewable alternatives such as wind or solar power for example. However, with the rise of the automobile industry and the industrial revolution in the late 19th century, and especially since the beginning of the 20th century, oil has been playing an ever-increasingly important role. This enabled economies in the Middle East to grow through oil sales.
Democratic and Republican parties have only been around since the 1800s in the U.S. (These parties were formed by the federalist and the whig parties) and Communism is a big no no here
