Which launch date involved the Driade?
CREATE TABLE table_13537940_1 (launched VARCHAR, name VARCHAR)
SELECT launched FROM table_13537940_1 WHERE name = "Driade"
### Context: CREATE TABLE table_13537940_1 (launched VARCHAR, name VARCHAR) ### Question: Which launch date involved the Driade? ### Answer: SELECT launched FROM table_13537940_1 WHERE name = "Driade"