 Most common agricultures are cereals, maize and rapeseed, while famous agricultural products from the Weimar region are potatoes (especially from Heichelheim, to the north) for dishes with s (Knödel from potatoes), onions (from Heldrungen and Oldisleben, to the north), which are sold at Weimar Onion Market in October, and Saale-Unstrut wine from Bad Sulza, to the north-east.Industry has never been dominant in Weimar, nevertheless there were several big factories from different sectors until 1990.After reunification, nearly all factories got closed, either because they failed the adoption of free market economy or because the German government sold them to west German businessmen who closed them to avoid competition to their own enterprises.