@idem
1877; the Northwest Territories (annexed to Canada in 1869);
The constitution has guaranteed these territories bilingualism in the legislature and in the courts.
(1890; Conservative MP D'Alton McCarthy abolish the bilingual character of the Canadian territory).
(1892; made English the only language in schools and courts. The Council of the Northwest Territories then abolished segregated schools, that is to say, Catholic and French.)

1905; Saskatchewan and Alberta
No constitutional guarantee was given to French Catholic minority of these new provinces, while the federal government did not show no will to protect these rights, any more than it did at school conflicts in New Brunswick and Manitoba. 
The « School Act » of Alberta imposed English as the ONLY language of instruction.
In Saskatchewan, the « School Act » of 1909 made English the ONLY language of instruction, but allowed limited use of French in primary schools.
(more to come)