CREATE TABLE table_10612 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the date of the game at Princes Park?
SELECT "Date" FROM table_10612 WHERE "Venue" = 'princes park'
SELECT "Date" FROM "table_10612" WHERE "Venue" = 'princes park'