Joel Wolfe is Professor of History at the University of Massachusetts Amherst. He’s the author of Working Women, Working Men: São Paulo and the Rise of Brazil’s Industrial Working Class and Autos and Progress: The Brazilian Search for Modernity. He’s writing The Global Twenties: Life, Work, and Trade in the Western Hemisphere in the 1920s. His not so secret passion is his “History of Baseball” class that he teaches every year at UMass.