user: Question: What date was the attendance 82,500?
Columns: ['Date', 'Opponent#', 'Rank#', 'Result', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['September 20, 1969', 'Oklahoma State', '2', 'W39–0', '51,125']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Attendance" = '82,500';