SELECT "Date" FROM table_12025 WHERE "Venue" = 'princes park'
What is the date of the game when the venue is Princes Park?
CREATE TABLE table_12025 (
    "Home team" text,
    "Home team score" text,
    "Away team" text,
    "Away team score" text,
    "Venue" text,
    "Crowd" real,
    "Date" text
)