user: Question: Name the most join date
Columns: ['School', 'Nickname', 'Location', 'Colors', 'Join Date']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Canton McKinley', 'Bulldogs', 'Canton', 'Red, Black', 2003.0]
SQL:

assistant: SELECT MAX("Join Date") FROM "Table";