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_90 (february INTEGER, opponent VARCHAR)
### Question:
What is the earliest day that had a game against the Boston Bruins?
### Answer:
SELECT MIN(february) FROM table_name_90 WHERE opponent = "boston bruins"