Erfurt (ˈɛʁfʊʁt) is the capital and largest city of the Central German state of Thuringia. It is in the wide valley of the River Gera, in the southern part of the Thuringian Basin, north of the Thuringian Forest, and in the middle of a line of the six largest Thuringian cities (Thüringer Städtekette), stretching from Eisenach in the west, via Gotha, Erfurt, Weimar and Jena, to Gera in the east, close to the geographic centre of Germany. Erfurt is south-west of Leipzig, north-east of Frankfurt, south-west of Berlin and north of Munich.
Erfurt's old town is one of the best preserved medieval city centres in Germany. Tourist attractions include the Merchants' Bridge (Krämerbrücke), the Old Synagogue (Alte Synagoge), the oldest in Europe, Cathedral Hill (Domberg) with the ensemble of Erfurt Cathedral (Erfurter Dom) and St Severus' Church (Severikirche) and Petersberg Citadel (Zitadelle Petersberg), one of the largest and best preserved town fortresses in Central Europe. The city's economy is based on agriculture, horticulture and microelectronics. Its central location has made it a logistics hub for Germany and central Europe. Erfurt hosts the second-largest trade fair in eastern Germany (after Leipzig), as well as the public television children's channel KiKa.
The city is on the Via Regia, a medieval trade and pilgrims' road network. Modern Erfurt is also a hub for ICE high speed trains and other German and European transport networks. Erfurt was first mentioned in 742, as Saint Boniface founded the diocese. Although the town did not belong to any of the Thuringian states politically, it quickly became the economic centre of the region and was a member of the Hanseatic League. It was part of the Electorate of Mainz during the Holy Roman Empire, and became part of the Kingdom of Prussia in 1802. From 1949 until 1990 Erfurt was part of the German Democratic Republic (East Germany).
The University of Erfurt was founded in 1379, making it the first university to be established within the geographic area which constitutes modern Germany.