CREATE TABLE table_57748 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

If the Away team was carlton, what Date did they play?
SELECT "Date" FROM table_57748 WHERE "Away team" = 'carlton'
SELECT "Date" FROM "table_57748" WHERE "Away team" = 'carlton'