user: Question: When was the earliest year when the attendance was 77254?
Columns: ['Year', 'Date', 'Home Team', 'Result', 'Visiting Team', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1960.0, 'October 2', 'San Francisco 49ers', '13-9', 'Los Angeles Rams', 'Kezar Stadium', 53.633]
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Attendance" = 77254.0;