Celts in Transylvania arrived in northwestern Transylvania in around 400–350 BC as part of their great migration eastwards. When Celtic warriors first penetrated these territories, the group seem to have merged with the domestic population of early Dacians and assimilated many Hallstatt cultural traditions. The second half of the 4th century BC saw the Middle La Tène Celtic culture emerge in north-western and central Dacia, a development reflected especially in burials of the period. Celtic artifacts dating to this time have been discovered at Turdaş, Haţeg and Mediaş in modern-day Romania. By 1976, the number of Celtic sites found in Transylvania had reached
History of Transylvania the last political triumph of Hungarian Protestantism, in which the emperor was forced to reconfirm the articles of the Peace of Vienna. Gabriel Bethlen and George I Rákóczi aided education and culture, and their reign has been called the golden era of Transylvania. They lavished money on their capital Alba Iulia ("Gyulafehérvár" or "Weißenburg"), which became the main bulwark of Protestantism in Central Europe. During their reign, Transylvania was one of the few European countries where Roman Catholics, Calvinists, Lutherans and Unitarians lived in mutual tolerance—all officially accepted religions ("religiones recaepte"). The Orthodox, however, still had inferior status. This golden