a city in southwestern Poland and the administrative center of Opole Województwo. Population, 90,000 (1972). It is a railroad and highway junction and a port on the Oder River. One of the city’s main industries, machine building, is represented by a railroad repair depot and factories producing electric motors and automotive parts. Other products include cement, foodstuffs, furniture, and knitwear. The city has a higher school of engineering and a pedagogical institute.
Opole was founded in the tenth century on the site of an unfortified settlement of the Slavic Opolanie tribe. It was originally a small fortification on an islet formed by the Oder and its branch, the Młynówka. In the early 13th century, when Opole became the capital of a Piast principality, the center of the city was transferred to the right bank of the Oder, and the prince’s castle was built on the site of the old fortification. During this period several stone buildings were constructed in Opole, and the city itself was enclosed by a stone wall. Under Hapsburg rule from 1532 to 1740 (with interruptions), the city was conquered by Prussia in 1740 and became part of Germany in 1871. On Jan. 24, 1945, the city, called Oppeln, was liberated from the fascist German troops by the Soviet army and was returned to Poland. Excavations in the oldest part of Opole, begun in 1948, have uncovered remains of wooden defense works and many small frame houses that had belonged to artisans and tradespeople.