CREATE TABLE table_33259 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What day is richmond the away side?
SELECT "Date" FROM table_33259 WHERE "Away team" = 'richmond'
SELECT "Date" FROM "table_33259" WHERE "Away team" = 'richmond'