Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_70 (date VARCHAR, year VARCHAR, location VARCHAR, winner VARCHAR)
### Question:
What is Date, when Location is Polo Grounds, when Winner is Philadelphia Eagles, and when Year is 1948?
### Answer:
SELECT date FROM table_name_70 WHERE location = "polo grounds" AND winner = "philadelphia eagles" AND year = 1948