This week ITPL, the history podcast, delves into the little known and yet very significant development of the ice and refrigeration industries in US history. First, it's the story of Frederick Tudor, the "Ice King," who single-handedly invented the ice industry way back in 1806. This development radically redefined the American life, especially the American diet. Then I interview historian Jonathan Rees about how mechanical refrigeration and machine-made ice accelerated the transformation of everyday life.