Page "Dortmund" Paragraph 5

After 1320, the city appeared in writing as " Dorpmunde ", and the 1661 earthquake collapsed the Reinoldikirche.

Within the Prussian Province of Westphalia, Dortmund was a district seat within Regierungsbezirk Arnsberg until 1875, after which it was an urban district within the region.

During the industrialization of Prussia, Dortmund became a major centre for coal and steel.