user: Question: When did the home team of Richmond play?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['North Melbourne', '12.22 (94)', 'South Melbourne', '5.15 (45)', 'Arden Street Oval', 9543.0, '14 July 1962']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Home team" = 'Richmond';