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_261927_2 (joined VARCHAR, left VARCHAR, nickname VARCHAR)
### Question:
What date did the institution that left in 2013 and that is nicknamed Corsairs, join? 
### Answer:
SELECT joined FROM table_261927_2 WHERE left = "2013" AND nickname = "Corsairs"