19th century thumb|right|Colourful gabled houses of Rostock In the first half of the 19th century, Rostock regained much of its economic importance, due at first to the wheat trade, then, from the 1850s, to industry, especially its shipyards. The first propeller-driven steamers in Germany were constructed here.
19th century thumb|right|Colourful gabled houses of Rostock In the first half of the 19th century, Rostock regained much of its economic importance, due at first to the wheat trade, then, from the 1850s, to industry, especially its shipyards. The first propeller-driven steamers in Germany were constructed here.