CREATE TABLE table_53649 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When did Fitzroy play as the away team?
SELECT "Date" FROM table_53649 WHERE "Away team" = 'fitzroy'
SELECT "Date" FROM "table_53649" WHERE "Away team" = 'fitzroy'