CREATE TABLE table_22050 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Record" TEXT, "Attendance" FLOAT)

What is the opponent played on October 4?
SELECT "Opponent" FROM table_22050 WHERE "Date" = 'October 4'
SELECT "Opponent" FROM "table_22050" WHERE "Date" = 'October 4'