CREATE TABLE table_66684 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" TEXT)

What was the attendance of the game on September 18, 1965 before week 3?
SELECT "Attendance" FROM table_66684 WHERE "Week" < '3' AND "Date" = 'september 18, 1965'
SELECT "Attendance" FROM "table_66684" WHERE "Date" = 'september 18, 1965' AND "Week" < '3'