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_10 (date VARCHAR, circuit VARCHAR, fastest_lap VARCHAR)
### Question:
What date was the circuit, snetterton, when riki christodoulou had the fastest lap?
### Answer:
SELECT date FROM table_name_10 WHERE circuit = "snetterton" AND fastest_lap = "riki christodoulou"