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_1174162_1 (date_first_settled_as_a_suburb VARCHAR, median_age__in_2006_ VARCHAR)
### Question:
What is the date settled for 40 years?
### Answer:
SELECT date_first_settled_as_a_suburb FROM table_1174162_1 WHERE median_age__in_2006_ = "40 years"