CREATE TABLE table_4479 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What date did the VFL play Punt Road Oval?
SELECT "Date" FROM table_4479 WHERE "Venue" = 'punt road oval'
SELECT "Date" FROM "table_4479" WHERE "Venue" = 'punt road oval'