Subscribe The Transcontinental Railroad and the Making of Modern America Richard White – Stanford University
Subscribe The Panama Canal: How It Was Built and Why It Matters Joseph Schofer – Northwestern University
Subscribe Julius and Ethel Rosenberg: What We Know Now (That We Didn't Know Then) David Goldenberg – University of Hartford
Subscribe A History of Chocolate: From the Aztecs' Favorite Drink to America’s Favorite Candy Bar Sarah Lohman – Culinary Historian
