CREATE TABLE table_52490 ("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_52490 WHERE "Venue" = 'princes park'
SELECT "Date" FROM "table_52490" WHERE "Venue" = 'princes park'