Why is Canada not part of the United States?

Why is Canada not part of America? To answer this question I have invited Tristan from the channel Step Back History to tell us the story of how his nation remain independent of its southern neighbour. Check Out the Step Back History Channel: (It’s really really awesome) Follow me on twitter: Like the FaceBook page: Sources: Foner, Eric. Give me Liberty! Riendeau, Roger. A Brief History of Canada