The present book is an effort to understand the role of masonry in the introduction of freedom of worship in Mexico. With erudition, the author leads us through the stages ending with the victory of the liberal republic, headed by Benito Juárez, and the establishment thereby of freedom of worship, which made possible the insertion of American protestant missions in Mexico. Many Protestants brought not only their faith, but Freemasonry as well. - Dr. Adolfo García de la Sienra Guajardo Director del Instituto de Filosofía - Universidad Veracruzana, México Presidente de la Sociedad Iberoamericana de Metodología Económica This is a scholarly study, well documented, analyzing one of the most controversial themes in the history of Mexico. In the work of Sara Frahm, Masonry ceases being mysterious, and is revealed as one of the strong components that shaped 19th century Mexico - María Eugenia Vázquez Semadeni, Visiting Assistant Professor, Department of History, UCLA.