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:
| Week | Date | Opponent | Result | Record | Game Site | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 21, 1975 | at Chicago Bears | W 35–7 | 1–0 | Soldier Field | 54152.0 |
| 2.0 | September 28, 1975 | Oakland Raiders | L 20–31 | 1–1 | Memorial Stadium | 40657.0 |
| 3.0 | October 5, 1975 | at Los Angeles Rams | L 13–24 | 1–2 | Los Angeles Memorial Coliseum | 62491.0 |
| 4.0 | October 12, 1975 | Buffalo Bills | L 31–38 | 1–3 | Memorial Stadium | 43907.0 |
| 5.0 | October 19, 1975 | at New England Patriots | L 10–21 | 1–4 | Schaeffer Stadium | 51417.0 |
| 6.0 | October 26, 1975 | at New York Jets | W 45–28 | 2–4 | Shea Stadium | 55137.0 |
| 7.0 | November 2, 1975 | Cleveland Browns | W 21–7 | 3–4 | Memorial Stadium | 35235.0 |
| 8.0 | November 9, 1975 | at Buffalo Bills | W 42–35 | 4–4 | Rich Stadium | 77320.0 |
| 9.0 | November 16, 1975 | New York Jets | W 52–19 | 5–4 | Memorial Stadium | 52097.0 |
| 10.0 | November 23, 1975 | at Miami Dolphins | W 33–17 | 6–4 | Miami Orange Bowl | 61986.0 |
| 11.0 | November 30, 1975 | Kansas City Chiefs | W 28–14 | 7–4 | Memorial Stadium | 42122.0 |
| 12.0 | December 7, 1975 | at New York Giants | W 21–0 | 8–4 | Shea Stadium | 49863.0 |
| 13.0 | December 14, 1975 | Miami Dolphins | W 10–7 | 9–4 | Memorial Stadium | 59398.0 |
Question:
what's the date with attendance being 40657
Answer:
September 28, 1975