Poetovio

Ptuj
City
The old part of Ptuj
Coat of arms
Ptuj Location of the city of Ptuj in Slovenia
Coordinates: 46°25′10″N 15°52′10″E / 46.41944°N 15.86944°E / 46.41944; 15.86944Coordinates: 46°25′10″N 15°52′10″E / 46.41944°N 15.86944°E / 46.41944; 15.86944
Country	Slovenia
Traditional region	Styria
Statistical region	Drava
Municipality	Ptuj
Government
• Mayor	Miran Senčar
Area
• Total	25.6 km2 (9.9 sq mi)
Population (2013)
• Total	17,972
• Density	701/km2 (1,820/sq mi)
Time zone	CET (UTC+01)
• Summer (DST)	CEST (UTC+02)
Climate	Cfb
Website	Official site

Ptuj (pronounced [ˈptuːi̯]; German: Pettau; Latin: Poetovium) is a town in northeastern Slovenia. Traditionally the area was part of the Styria region.

Ptuj is the oldest city in Slovenia. There is evidence that the area was settled in the Stone Age. In the Late Iron Age it was settled by Celts.

By the 1st century BC, the settlement was controlled by Ancient Rome as part of the Pannonian province. In 69 AD, Vespasian was elected Roman Emperor by the Danubian legions in Ptuj, and the first written mention of the city of Ptuj is from the same year. Poetovium was the base-camp of Legio XIII Gemina where it had its legionary fortress or castrum. The name originated in the times of Emperor Trajan, who granted the settlement city status and named it Colonia Ulpia Traiana Poetovio in 103.

The city had 40,000 inhabitants until it was plundered by the Huns in 450.

In 570 the city was occupied by Eurasian Avars and Slavic tribes. Ptuj became part of the Frankish Empire after the fall of Avar state at the end of 8th century. Between 840 and 874 it belonged to the Slavic Balaton Principality of Pribina and Kocelj. Between 874 and 890 Ptuj gradually came under the influence of the Archbishopric of Salzburg;city rights passed in 1376 began an economic upswing for the settlement. As Pettau, it was incorporated into the Duchy of Styria in 1555.