July 15th, 2015
Episode 1082 of 1340 episodes
Steph McGovern sets out to explain the role of Salt in our history. She hears how it has taken root in our language, visits a chemistry class to find out about how it is produced and its importance to our physical well being. She talks to history professor Peter Wallenstein about the unexpected importance of salt in military strategy right up until the 20th Century.