Leighton Smith is currently on his summer break, so we're going back and highlighting some of the best guests from the podcast this year.

On this week's Best Of, we revisit Leighton's long anticipated interview with history professor Geoffrey Parker.  A prolific author and collector of many awards, Parker published “Global Crisis: War, Climate  Change & Catastrophe in the Seventeenth Century” in 2013, which he says it took him almost a century to write!

While he and Leighton had some disagreements, this was a ‘diplomatic’ discussion - and enjoyable, as reflected in its length. It is the longest of the podcasts so far. 

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