The document provides important dates in Hispanic world history from January 13, 1846 when the Mexican-American War began to December 2, 1961 when Fidel Castro abolished democracy in Cuba, resigning in 2008. It includes military conflicts like the Mexican-American War and the Spanish-American War, explorations of places like Florida and Mexico, deaths of figures like Christopher Columbus and Evita Perón, and births of people such as baseball player Roberto Clemente and filmmaker Pedro Almodóvar.