CREATE TABLE table_46643 ("Date" CLOB, "Opponent#" CLOB, "Rank #" CLOB, "Site" CLOB, "Result" CLOB, "Attendance" CLOB)

What date was the game when 40,000 attended?
SELECT "Date" FROM table_46643 WHERE "Attendance" = '40,000'
SELECT "Date" FROM "table_46643" WHERE "Attendance" = '40,000'