user: ### NOW ANSWER:
Question: What was the Date of the game held during Week 1, that had an Attendance greater than 50637?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 3, 1978', 'at Seattle Seahawks', 'W 24–20', 55778.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Attendance" > 50637.0 AND "Week" = 1.0;