CREATE TABLE table_57271 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

When was victoria park used as a venue?
SELECT "Date" FROM table_57271 WHERE "Venue" = 'victoria park'
SELECT "Date" FROM "table_57271" WHERE "Venue" = 'victoria park'