What are examples of large scale immigration to Canada?

Large-scale Immigration to Canada has occurred at various points in history, including the post-World War II era when thousands of displaced Europeans sought refuge. The 1970s saw significant immigration from Southeast Asia, particularly after the Vietnam War. More recently, the Syrian refugee crisis led to the resettlement of tens of thousands of Syrians in Canada starting in 2015. Additionally, Canada's Express Entry system has facilitated the immigration of skilled workers from around the world since its implementation in 2015, further contributing to large-scale immigration trends.