Concentration camp
Poland was occupied by the Germany in World War II, and in 1940 the Germans built the Auschwitz concentration camp by converting Polish military barracks.
Between 1940 and 1945, roughly 1 million people, mostly Jews, died in the Auschwitz camps: see the articles on Auschwitz concentration camp, Holocaust and extermination camp for a detailed account.
After the war, the Polish government took possession of the Buna-Werke, a chemical factory owned by IG Farben which had previously used Auschwitz prisoners as slave laborers. The chemical industry became the main employer of Oświęcim; in later times service and trade were emphasized. The concentration camp became a museum.
Sports
The ice hockey team of Oświęcim was repeatedly Polish champion.