These are some awesome videos that will explain a whole bunch of different topics throughout the United States' History. All the titles of the video will tell you what is in each video.

This shows the different parts of the world and their history of it. There are so many different videos on the different wars and much more information.

This explains a lot of how the government works and what the different parts of the government are. He shows diagrams and info-graphics on each part.

Khan Academy has some great resources for learning Economics, they have tutorials and step by steps for you to use.