Islam came to parts of European islands and coasts on the Mediterranean during the 8th-century Muslim conquests. In the Iberian Peninsula and parts of southern France, various Muslim states existed before the Reconquista; Islam spread in southern Italy briefly through the Emirate of Sicily and Emirate of Bari. During the Ottoman expansion, Islam was spread from into the Balkans and even part of central Europe. Muslims have also been historically present in Ukraine (Crimea and vicinity, with the Crimean Tatars), as well as modern-day Russia, beginning with Volga Bulgaria in the 10th century and the conversion of the Golden Horde to Islam. In recent years, Muslims have migrated to Europe as residents and temporary workers.