To “accommodate” (?) English-speaking British Loyalists coming en masse in Québec from the ‘new’ USA States, the Constitutional Act of 1791 « divided » 
the province of Québec into French-speaking Lower Canada (later Québec) 
and English-speaking Upper Canada (later Ontario), 
granting each ITS OWN ELECTED LEGISLATIVE assembly.
(Since that day Québec has always used the term of the National Assembly (l’Assemblée Nationale) to designate its Parliament, even after Confederation* of 1867)
(* Canada is a Federal state and NOT a confederate association of Sovereign states, the usual meaning of « Confederation »)