Canada’s colonialism is ongoing, built upon Doctrine of Discovery foundations Published May 04, 2026 • Last updated May 04, 2026 • 4 minute read Former prime ministers Steven Harper (right) and Justin Trudeau may have claimed, in slightly different ways, that Canada did not have a legacy of colonialism, but they were wrong, Karl Hele writes. Chris Jackson - Pool/Getty Images Article content On April 5, 1876, Alexander Mackenzie’s Liberal majority government passed the Indian Act.