sentences:  Duisburg station was opened in Duisburg on 9 February 1846 by the Cologne-Minden Railway Company ("Cöln-Mindener Eisenbahn-Gesellschaft", CME) along with the second section of its trunk line from Cologne-Deutz to Minden.On 15 May 1847 the line was extended to Hamm and Duisburg station became a through station on the line from Düsseldorf to Oberhausen.Fifteen years later, in 1862, the Bergisch-Märkische Railway Company ("Bergisch-Märkische Eisenbahn-Gesellschaft", BME), opened its east-west route through the Ruhr region from Dortmund and Witten to Duisburg.