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_15851155_1 (location VARCHAR, control VARCHAR, founded VARCHAR)
### Question:
Name the location when control is private and founded is 1870
### Answer:
SELECT location FROM table_15851155_1 WHERE control = "Private" AND founded = 1870