The document summarizes the Reconquista of Spain, which was the nearly 800-year period when Christian kingdoms gradually recaptured the Iberian Peninsula from the Moors. It provides a timeline of key events, noting that the Muslim invasion began in 711 AD and that the Reconquista was not completed until 1492, when all Muslims and Jews were expelled from Spain. The document also includes background information on how Spain initially came under Muslim control and on the tolerant Moorish kingdom that ruled for several centuries.