It happened on December 10 1985…Steve MacLean is named Canada’s second astronaut
Maclean was a laser physicist and began astronaut training in 1984 and was scheduled to first go into space aboard Atlantis in 1987. That mission was cancelled after the Challenger disaster.
Also on December 10 1985, Supreme Court of Canada upholds firing of public servant Neil Fraser for criticizing the government’s metric conversion policies
The first Canadian astronaut was Marc Garneau – in case you’re wondering