Having been populated since the Bronze Age, Toledo (Toletum in Latin) grew in importance during Roman times, being a main commercial and administrative centre in the Roman province of Tarraconensis. After the fall of the Roman Empire, Toledo served as the capital city of Visigothic Spain, beginning with Liuvigild (Leovigild), and was the capital of Spain until the Moors conquered Iberia in the 8th century.
Under the Caliphate of Cordoba, Toledo enjoyed a golden age; it became a very large cosmopolitan city with an overwhelming Muladi population. This extensive period is known as La Convivencia, i.e. the co-existence of Jews, Christians, and Muslims. Under Arab rule, Toledo was called Tulaytulah. After the fall of the Caliphate, Toledo was the capital city of one of the richest Taifas of Al-Andalus. Its population was overwhelmingly Muladi, and, because of its central location in the Iberian Peninsula, Toledo took a central position in the struggles between the Muslim and Christian rulers of northern Spain. The conquest of Toledo by Alfonso VI of Castile marked the first time a major city in Al-Andalus had fallen to Christian forces; it served to sharpen the religious aspect of the Christian reconquest.
On May 25, 1085, Alfonso VI of Castile took Toledo and established direct personal control over the Moorish city from which he had been exacting tribute, ending the medieval Taifa's Kingdom of Toledo. This was the first concrete step taken by the combined kingdom of Leon-Castile in the Reconquista by Christian forces. After Castilian conquest, Toledo continued to be a major cultural centre; its Arab libraries were not pillaged, and a tag-team translation centre was established in which books in Arabic would be translated from Arabic or Hebrew to Spanish by Arab and Jewish scholars, and from Spanish to Latin by Castilian scholars, thus letting long-lost knowledge spread through Christian Europe again. For some time during the 16th century, Toledo served as the capital city of Castile, and the city flourished. However, soon enough the Spanish court was moved, first to Valladolid and then to Madrid, thus letting the city's importance dwindle until the late 20th century, when it became the capital of the autonomous community of Castile-La Mancha. Nevertheless, the economic decline of the city helped to preserve its cultural and architectural heritage. Today, because of this rich heritage, Toledo is one of Spain's foremost cities, receiving thousands of visitors yearly.
Toledo's Alcázar (Arabicized Latin word for palace-castle) became renowned in the 19th and 20th centuries as a military academy. At the outbreak of the Spanish Civil War in 1936 its garrison was famously besieged by Republican forces.