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_21 (first_appearance VARCHAR, character VARCHAR)
### Question:
Where did the character of Aiden Burn csi detective first appear?
### Answer:
SELECT first_appearance FROM table_name_21 WHERE character = "aiden burn csi detective"