After obtaining the rest of the land that is now Mission, the area was incorporated on November 2, 1899, as the Village of Rouleauville, named after Charles Rouleau. The village was founded in what was then the District of Alberta in the North-West Territories. Despite Lacombe's desire to preserve the French language and culture, Rouleauville progressively lost its French character, becoming overwhelmingly English. In 1907 the village was annexed by Calgary. In the process all the French names of streets were replaced by Calgary's street numbering system.