user: Question: What was the earliest week on September 26, 1965?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 12, 1965', 'at Oakland Raiders', 'L 37–10', '18,659']
SQL:

assistant: SELECT MIN("Week") FROM "Table" WHERE "Date" = 'September 26, 1965';