CREATE TABLE table_32808 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When was the game that was held at the Princes Park?
SELECT "Date" FROM table_32808 WHERE "Venue" = 'princes park'
SELECT "Date" FROM "table_32808" WHERE "Venue" = 'princes park'