 Socialist and Marxist thought was a popular ideology during the Mexican Revolution. In addition to the work of Lombardo Toledano who employed a Marxist framework to explain Mexico’s situation, José Revueltas (1914–1976) was an unorthodox Marxist who discussed philosophical themes in his literary and political writings. Despite the influence of Lombardo and Revueltas, however, academics didn’t take Marxism seriously until the 1970s. Two central figures of Marxism in the Mexican academy during that period were Eli de Gortari (1918–1991) and Adolfo Sánchez Vázquez.