Originally due to be hosted by Rome, the 1906 eruption of Vesuvius meant that London was a late replacement to hold the fourth modern Olympiad in 1908.
The majority of the events were carried out in the quickly-constructed White City stadium in west London over a two-week period, but some of the team games were played in the autumn – including the lacrosse tournament, in which there were only two teams.
Great Britain won the silver medal, so we can assume the Canadians won (the score was 10-14).