What Canadians made a change in the world?

Several Canadians have made significant contributions that changed the world. For instance, Dr. Frederick Banting co-discovered insulin, revolutionizing Diabetes treatment and saving countless lives. Additionally, Viola Desmond became a symbol of the fight against racial segregation in Canada, inspiring movements for civil rights. Furthermore, environmental activist David Suzuki has raised global awareness about climate change and conservation through his work in science and media.