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 | Attendance |
| --- | --- | --- | --- | --- |
| September 7 | East Tennessee State | Dowdy-Ficklen Stadium • Greenville, NC | W45–21 | 25,512 |
| September 14 | at West Virginia | Mountaineer Field • Morgantown, WV | L9–10 | 50,129 |
| September 21 | at South Carolina | Williams-Brice Stadium • Columbia, SC | W23–7 | 79,806 |
| September 28 | Central Florida | Dowdy-Ficklen Stadium • Greenville, NC | W28–7 | 34,121 |
| October 10 | Southern Mississippi | Dowdy-Ficklen Stadium • Greenville, NC | L7–28 | 34,480 |
| October 19 | at 12 Miami (FL) | Miami Orange Bowl • Miami, FL | W31–6 | 31,909 |
| November 2 | Arkansas State | Dowdy-Ficklen Stadium • Greenville, NC | W34–16 | 24,890 |
| November 9 | at 25 Virginia Tech | Lane Stadium • Blacksburg, VA | L14–35 | 49,128 |
| November 16 | Ohio | Dowdy-Ficklen Stadium • Greenville, NC | W55–45 | 27,321 |
| November 23 | at Memphis | Liberty Bowl • Memphis, TN | W20–10 | 25,059 |
| November 30 | vs. North Carolina State | Ericsson Stadium • Charlotte, NC | W50–29 | 66,347 |
| All times are in Eastern. | All times are in Eastern. | All times are in Eastern. | All times are in Eastern. | All times are in Eastern. |
Question:
What date was the game at Williams-Brice stadium • Columbia, SC?
Answer:
September 21