CREATE TABLE table_204_123 (id DECIMAL, "week" DECIMAL, "date" TEXT, "kickoff" TEXT, "opponent" TEXT, "results\ final score" TEXT, "results\ team record" TEXT, "game site" TEXT, "attendance" DECIMAL)

which date had the least attendance ?
SELECT "date" FROM table_204_123 ORDER BY "attendance" LIMIT 1
SELECT "date" FROM "table_204_123" ORDER BY "attendance" NULLS FIRST LIMIT 1