In an article for the Greeley Tribune, Professor Rob Natelson from the Independence Institute outlines many of the major features of the Magna Carta (great charter) that was signed on June 15, 1215.
Radio host, Amy Oliver, discussed Magna Carta and the article with Rob Natelson on the January 13, 2015, program on 1310 KFKA. Podcasts can be found under "On Air" tab usually a day or so after the program (see the second hour).
Be sure to look for a translation from Latin. Here are a couple of web sites to check for information; of course there are others.
Many of Rob Natelson's articles are linked at the "Constitution" tab on the Independence Institute's web page and he is on some of the KLZ 560 radio programs once each month besides the 1310 KFKA program: