To start with History, look for "A People's History of the United States" by howard zinn.
But.. really start with your own questions.. things that you doubt.. things that feel like the system is telling you to believe in.. and this site has a great feature to help!
At the very top of the main page, in the top right corner, is a search option. Dr. Black has put great effort into including many, many, many topics with at least a starting place. So. try searching the site, and see what might already have a hint already here! Namaska!