This is a fantastic history resource and one of my favorite YouTube channels.  John Green loves history and making YouTube videos, so he combined the two and created "Crash Course."  He covers just about every topic we need to know for the NYS Global Regents, and he can talk through an entire unit in 15 minutes or less (hence, "crash course")!  He also has a good sense of humor.
Check out the video for Imperialism below, and explore his YouTube Channel for more!

Check out this video clip from a movie about one of the leaders of the Sepoy Rebellion (Mutiny).