At the crossroads between intellectual, political, and gender history, From Virile to Sterile: Science, Masculinity, and Modernity in Argentina, 1776–1852 is a real tour de force. While it shows the evolution of the notion of masculinity in late eighteenth- and early nineteenth-century South America, it takes the reader on a transnational trip into the world of ideas. This book will be required reading for anyone interested in the cultural and political dimensions of the construction of Latin American nations.