how old was terry fox when he ran

Terry Fox was 21 years old when he ran his cross-Canada Marathon of Hope. He began his run on April 12, 1980, at the age of 21, after having his right leg amputated due to bone cancer at age 18. He ran for 143 days until September 1, 1980, when he was forced to stop because cancer had spread to his lungs. He passed away the following year at the age of 22.