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 | Site | Result |
| --- | --- | --- | --- |
| September 5 | Alcorn State | Independence Stadium • Shreveport. LA | L 24–28 |
| September 12 | vs. Central State* | Yankee Stadium • New York, NY | L 21–37 |
| September 26 | Bethune-Cookman* | Eddie Robinson Stadium • Grambling, LA | W 21–14 |
| October 3 | vs. Prairie View A&M | Cotton Bowl • Dallas, TX | W 28–7 |
| October 10 | at Tennessee State* | Dudley Field • Nashville, TN | W 51–9 |
| October 17 | Mississippi Valley State | Eddie Robinson Stadium • Grambling, LA | W 45–14 |
| October 24 | at Jackson State | Mississippi Veterans Memorial Stadium • Jackson, MS | L 17–31 |
| October 31 | Texas Southern | Eddie Robinson Stadium • Grambling, LA | W 30–9 |
| November 7 | at Alabama State | Cramton Bowl • Montgomery, AL | L 7–17 |
| November 14 | South Carolina State* | Eddie Robinson Stadium • Grambling, LA | L 13–15 |
| November 28 | vs. Southern | Louisiana Superdome • New Orleans, LA (XIV Bayou Classic) | L 21–27 |
Question:
before the jackson state loss, when was their last loss?
Answer:
September 12