The contemporary sovereignty movement is thought to have originated from the Quiet Revolution of the 1960s, although the desire for an independent or autonomous French-Canadian state has periodically arisen throughout Quebec's history, notably during the 1837 Lower Canada Rebellion. Part of Quebec's continued historical desire for sovereignty is caused by Quebecers' perception of a singular English-speaking voice and identity that is dominant within the parameters of Canadian identity. (This is a point contested in other parts of Canada, particularly in places such as Manitoba, which has a significant French-speaking population and where, in the 1990s, that population tried to assert francophone language rights in schools. The separatist Parti Québécois-led government of Quebec offered up comment actually taking the side of the Manitoba government, which was opposed to granting those rights. Speculation persists that the Quebec government opposed this assertion of francophone identity outside of the province because of the impact it would have on the assertion of anglophone language rights within its own borders.)