In the interwar period, Craiova, as the centre of an agricultural region, experienced little further industrialization; the number of industrial workers remained comparatively small. In 1939, Craiova had 7 industrial units with over 100 workers: the clothing industry companies "Oltenia" and "Scrisul Românesc" were well-known all over the country and abroad. The Treaty of Craiova was signed here on 7 September 1940; under its terms, Romania ceded to Bulgaria the territory of Southern Dobruja, which Romania had gained after the 1913 Second Balkan War.