Until 2008, US citizens didn't need a passport to enter Canada. What initially changed in 2008 was actually that you needed the passport to return back to the U

Until 2008, US citizens didn't need a passport to enter Canada. What initially changed in 2008 was actually that you needed the passport to return back to the US. I don't know what the rules were back then for moving to Canada, but you could stay 180 days at a time back then.