CREATE TABLE table_66605 ("Year" FLOAT, "Championship" TEXT, "Event" TEXT, "Nation" TEXT, "Result" TEXT)

What year was olympics, Canada and the Men's Eight Event ended with a silver medal?
SELECT MAX("Year") FROM table_66605 WHERE "Championship" = 'olympics' AND "Event" = 'men''s eight' AND "Nation" = 'canada' AND "Result" = 'silver'
SELECT MAX("Year") FROM "table_66605" WHERE "Championship" = 'olympics' AND "Event" = 'men\'s eight' AND "Nation" = 'canada' AND "Result" = 'silver'