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_34 (date VARCHAR, circuit VARCHAR, winning_manufacturer VARCHAR)
### Question:
What was the date of Circuit Hockenheimring and the winning manufacturer being Mercedes-Benz?
### Answer:
SELECT date FROM table_name_34 WHERE circuit = "hockenheimring" AND winning_manufacturer = "mercedes-benz"