Answer
The Plan of San Luis Potosí, issued by Francisco I. Madero on November 20, 1910, was a call to arms against the dictatorial regime of Porfirio Díaz in Mexico. The plan outlined a series of demands, including free and democratic elections, land reform, and the protection of workers' rights. It sparked the Mexican Revolution, which eventually led to the overthrow of Díaz and the establishment of a new constitutional government.