Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Opponent# | Rank # | Site | Result | Attendance |
| --- | --- | --- | --- | --- | --- |
| September 26 | Fort Knox Army squad | 1 | Ohio Stadium • Columbus, OH | W59-0 | 22,555 |
| October 3 | Indiana | 1 | Ohio Stadium • Columbus, OH | W32-21 | 48,227 |
| October 10 | USC | 1 | Ohio Stadium • Columbus, OH | W28-12 | 56,436 |
| October 17 | Purdue | 1 | Ohio Stadium • Columbus, OH | W26-0 | 45,943 |
| October 24 | at Northwestern | 1 | Dyche Stadium • Evanston, IL | W20-6 | 40,000 |
| October 31 | at 6 Wisconsin | 1 | Camp Randall Stadium • Madison, WI | L7-17 | 45,000 |
| November 7 | Pittsburgh | 6 | Ohio Stadium • Columbus, OH | W59-19 | 34,893 |
| November 14 | vs. 13 Illinois | 10 | Cleveland Stadium • Cleveland, OH | W44-20 | 68,586 |
| November 21 | 4 Michigan | 5 | Ohio Stadium • Columbus, OH | W21-7 | 71,691 |
| November 28 | Iowa Pre-Flight | 3 | Ohio Stadium • Columbus, OH | W41-12 | 27,259 |
| *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . | *Non-conference game. #Rankings from AP Poll . |
Question:
What date was the game when 40,000 attended?
Answer:
October 24