CREATE TABLE table_80407 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" TEXT)

What week did the September 9, 1967 game occur on?
SELECT MIN("Week") FROM table_80407 WHERE "Date" = 'september 9, 1967'
SELECT MIN("Week") FROM "table_80407" WHERE "Date" = 'september 9, 1967'