finally the Kouono-Yambassa. They were pushed south in turn when the Banen-Bafia entered from the confluence of the Mbam and Noun rivers. They were then troubled by the Bamun to the northwest, and the Banen fought two wars with them beginning around 1840; they eventually pushed the Bamun across the Noun, though some Banen groups paid tribute to the Bamun until 1901. One tradition says that the Bafia also fought off the Fulbe. The other small tribes of the Bafia region came at later times. European contacts The movement of the Beti-Pahuin through the region coincided with the height of the European slave trade on Cameroon's coast. The Ewondo took the opportunity to establish themselves as middlemen in this trade, forming a link between the tribes further on the interior and those toward the sea. Their slaves were sent out via the Sanaga River in exchange for European goods. After Great Britain outlawed the slave trade in 1827, trade continued in other goods, though slaves still left the area clandestinely. The Bassa also enjoyed similar go-between status. This period also saw the introduction of Christianity to the region when the Basel Mission set up a station at Eséka. German administration Three years after the German annexation of the Cameroons in 1884, the first white men moved in, under orders of governor Julius Baron Von Soden, to explore the territories of the Beti. A later governor, Jesko Von Puttkamer, began extensive plantation farming in the south of Cameroon, particularly of cocoa, which he introduced in 1905. Native peoples were used as forced labour. In response to this and to their loss of lucrative trade to the Germans, the Ewondo revolted in 1895 but were suppressed the next year. Other rebellions occurred under the Bane and Mbidambani. A second Ewondo resistance occurred in 1907 when the Germans tried to prop up their collaborator, Charles Atangana, as the over-chief of all Ewondo. Germany made various improvements to the territory, including the building of roads from Cameroon's coast to the inland areas, beginning in 1900. The first long-distance automobile journey took place in 1913, from Kribi to Yaoundé, a distance of 280 km, in eleven hours. The Germans also brought the railroad to the area, beginning a line from Douala to Yaoundé in 1909. Work was stopped at the outbreak of World War I, however. Germany moved the capital of the colony from Buea