"Sunday's Google Doodle pays tribute to famed Canadian athlete and cancer activist Terry Fox on the anniversary of the first run event organized across Canada in his honour.

The Doodle, illustrated by Toronto-based artist Lynn Scurfield, replaces the usual Google logo with an image of Fox running in a valley near a lake. The sun shines above him and the clouds in the background spell "Google."

The illustration pays homage to Fox’s original "Marathon of Hope" which he started on April 12, 1980, three years after he was diagnosed with bone cancer and had his right leg amputated."  CTV News

Learn more about this Canadian hero's courageous "Marathon of Hope" here.