CREATE TABLE table_10308 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What date was the game played at Princes Park?
SELECT "Date" FROM table_10308 WHERE "Venue" = 'princes park'
SELECT "Date" FROM "table_10308" WHERE "Venue" = 'princes park'