Read it here:
http://www.cbc.ca/stories/2004/04/10...campbell040410
http://www.canada.com/edmonton/edmon...5-dd3a16a54755
All I can say is... bullsh*t. Sure, she was the first female prime minister of Canada, but she didn't do anything but lose an election.
This quote sums my opinion up:
"I don't think Kim Campbell should even make a list of great Canadian leaders," he says. "She was the first and only (female) prime minister of Canada -- and that's stretching her accomplishments to the limit."
ETA: The second link contains the list of 50 leaders.