user: Question: What is the earliest year?
Columns: ['Outcome', 'Year', 'Championship', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', 1915.0, 'U.S. Championships', 'Grass', 'Irving Wright', 'Harry Johnson Hazel Hotchkiss Wightman', '0–6, 1–6']
SQL:

assistant: SELECT MIN("Year") FROM "Table";