History Extra podcast - July 2009 - Part 2
Mark Ormrod gives a colourful insight into medieval petitions; Christopher Lewis and Alison Boyle discuss two of the 17th century's greatest astronomers: Galileo and Thomas Harriot. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit podcastchoices.com/adchoices
