CREATE TABLE table_204_318 (id DECIMAL, "date" TEXT, "opponent" TEXT, "venue" TEXT, "result" TEXT, "attendance" DECIMAL, "scorers" TEXT)

when was the first game played .
SELECT "date" FROM table_204_318 ORDER BY "date" LIMIT 1
SELECT "date" FROM "table_204_318" ORDER BY "date" NULLS FIRST LIMIT 1