John Green, alongside with his brother Hank, started making videos on YouTube on January 2007, as a way to keep in touch with each other. 6 years from that, they have created a huge community of people, called "Nerdfighters", who work together towards decreasing "Worldsuck" (that is, the amount of bad things in the world) just by doing good things for others.
Very recently, the Vlogbrothers (as they are worldwide known now) started a channel called Crash Course, in which they post videos about academic topics such as Literature, Chemistry, Biology, History, and Ecology. This is a fun and interesting way of learning new things or adding knowledge about the topics you may be studying at school/university at the moment.
As this is a class of US History, I decided that it would be a great idea to post the list of videos that John Green has done about the matter, given that we have already seen all these topics in class.
