CREATE TABLE table_51204 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Date" TEXT)

What date was the home team score 5.9 (39)?
SELECT "Date" FROM table_51204 WHERE "Home team score" = '5.9 (39)'
SELECT "Date" FROM "table_51204" WHERE "Home team score" = '5.9 (39)'