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_22334183_3 (date VARCHAR, circuit VARCHAR)
### Question:
On how many different dates was the race at the Silverstone circuit?
### Answer:
SELECT COUNT(date) FROM table_22334183_3 WHERE circuit = "Silverstone"