The history of Belgrade dates back to at least 7000 BC. One of the largest prehistoric cultures of Europe, the Vinča culture, evolved from the Belgrade area in the 6th millennium BC. In antiquity, Thraco-Dacians inhabited the region, and after 279 BC Celts conquered the city, naming it Singidūn. It was conquered by the Romans during the reign of Augustus, and awarded city rights in the mid 2nd century. It was settled by the Slavs in the 520s, and changed hands several times before it became the capital of King Stefan Dragutin (1282–1316). In 1521 Belgrade was conquered by the Ottoman Empire and became the seat of a sanjak. It frequently passed from Ottoman to Habsburg rule, which saw the destruction of most of the city during the Austro-Ottoman wars. Belgrade was again named the capital of