http://en.wikipedia.org/wiki/English_civil_war
http://en.wikipedia.org/wiki/Cavalier
http://en.wikipedia.org/wiki/New_Model_Army
http://www.youtube.com/watch?v=O70pmB47ZN0 (for our video)
http://www.youtube.com/watch?v=Y-hktcFnWp4 (for our video)
Crosroads Textbook