With neither a large European population nor African wage earners, the Portuguese colonies offered poor markets for manufactured goods from the private sector. Consequently, industrialisation arrived in the form of government programs designed to improve internal communications and increase the number of European settlers. During the late 1830s, the government headed by Marquis Sá da Bandeira tried to encourage Portuguese farmers to migrate to Angola, with little success. Between 1845 and 1900, the European population of Angola rose from 1,832 to only about 9,000. European migration to Mozambique showed slightly better results—about 11,000 in 1911—but many were British from South Africa rather than Portuguese. The other major force for change was the rivalries that developed between European nations in the century between the end of the Napoleonic Wars and the outbreak of World War I. Forbidden from fighting each other by the "balance of power" established by the Treaty of Vienna, they competed in other ways including scientific discoveries, athletic competitions, exploration and proxy wars. Although not a major power anymore, Portugal participated in the competition, especially by sending out explorers to solidify their claim to all of the land between Angola and Mozambique. That bought them into conflict with men like Cecil Rhodes, whose own vision of an empire from "Cape to Cairo" required that the British gain control over the same land (see British Ultimatum).