Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which Date has an Opponent of newcastle united, and a Result of 2–1?

### Inputs:
table_name: table, columns: ['Date', 'Opponent', 'Venue', 'Result', 'Attendance']

### Response:
SELECT Date FROM table WHERE Opponent = newcastle united AND Result = 2–1