The University of Bristol (England) is offering a free online course about Magna Carta, including the history behind it and its modern relevance. The course has just started, but you can still sign up. Here is the LINK. (https://www.futurelearn.com/courses/explore-english-magna-carta) It is a VERY basic course, and it includes a bit of history along with instruction in the English language. If you already know a lot about Magna Carta and its influences on world governments, this isn't the course for you, but here are good links to info about Magna Carta.
Here is a link the the British Museum's theme page on Magna Carta. (http://www.bl.uk/magna-carta)
Also, here is a link to the BBC's Guide to Magna Carta. (http://www.bbc.co.uk/guides/zpnvb9q#zsfbr82)
