Over the next couple of weeks, we'll be revisiting some great moments in Canadian Summer Olympic history on the days they happened. Today we're taking you to the pool and four key performances over a 64-year period, starting in 1928.

The penultimate day of July is a banner day in Canadian Olympic history.

Four Canadians have won gold medals on July 30, beginning with Percy Williams in the men's 100-metre dash at the 1928 Amsterdam Games. The Vancouver native got off to good start and held off the field to win in 10.8 seconds.

Fifty-six years later to the day, swimmer Alex Baumann was the favourite in the men's 400 individual medley at the 1984 Los Angeles Games. Baumann eclipsed his own world record to win the gold medal.

Less than an hour later, Anne Ottenbrite won gold in the women's 200 breaststroke, making Ottenbrite and Baumann the first Canadians to win gold medals in the pool since George Hodgson at the 1912 Games in Stockholm.

Staying with swimming, Mark Tewksbury added to Canada's gold-medal haul on July 30, 1992 at the Barcelona Olympics.

Trailing by half a body length with 25 metres remaining, Tewksbury surged past American Jeff Rouse to win the gold medal in the men's 100 backstroke.