known as Ceres-grunden (lit.: the Ceres-ground). In 1896, local farmers and businessmen created Korn- og Foderstof Kompagniet (KFK), focused on grain and feedstuffs. KFK established departments all over the country, while its headquarters remained in Aarhus where its large grain silos still stand today. Otto Mønsted created the Danish Preserved Butter Company in 1874, focusing on butter export to England, China and Africa and later founded the Aarhus Butterine Company in 1883, the first Danish margarine factory. His company became an important local employer, with factory employees increasing from 100 in 1896 to 1,000 in 1931, partaking in the effective transformation of the city from a regional trade hub to an industrial centre. Other new factories of note included the dockyard Aarhus Flydedok and the oil mill Århus Oliefabrik. Aarhus became the largest provincial city in the country by the turn of the century and the city marketed itself as the "Capital of Jutland". The population increased from 15,000 in 1870 to 52,000 in 1901 and, in response, the city annexed large land areas to develop new residential quarters such as Trøjborg, Frederiksbjerg and Marselisborg. Many of its cultural institutions were also established at this time such as Aarhus Theatre (1900), the original State Library (1902), Aarhus University (1928) and several hospitals. Second World War On 9 April 1940, Nazi Germany invaded Denmark, occupying Aarhus the following day; the occuption lasted for five years. This was a destructive period with major disasters, loss of life and economic depression. The Port of Aarhus became a hub for supplies to the Baltics and Norway, while the surrounding rail network supplied the Atlantic Wall in west Jutland and cargo headed for Germany. Combined, these factors resulted in a strong German presence, especially in 1944–45. Small resistance groups first appeared in 1941–42 but the first to co-ordinate with the Freedom Council was the Samsing Group, responsible for most operations from early 1943. The Samsing group, along with others in and around Aarhus, was dismantled in June 1944 when Grethe "Thora" Bartram turned her family and acquaintances over to German authorities. In response, requests for assistance were sent to contacts in England and in October 1944 the Royal Air Force bombed the Gestapo headquarters successfully destroying archives and obstructing the ongoing investigation. In the summer of 1944 the Copenhagen-based resistance group Holger Danske helped establish the 5 Kolonne group and an SOE agent arrived from