CREATE TABLE table_name_66 (date VARCHAR2, opponent VARCHAR2, result VARCHAR2)

Which Date has an Opponent of newcastle united, and a Result of 2 1?
SELECT date FROM table_name_66 WHERE opponent = "newcastle united" AND result = "2–1"
SELECT "date" FROM "table_name_66" WHERE "2–1" = "result" AND "newcastle united" = "opponent"