What year was there a production created by Adelphi?
CREATE TABLE table_5940 (
    "Medium" text,
    "Title" text,
    "Date" text,
    "Theatre, Studio, or Network" text,
    "Role" text
)
SELECT "Date" FROM table_5940 WHERE "Theatre, Studio, or Network" = 'adelphi'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What year was there a production created by Adelphi? ### Input: CREATE TABLE table_5940 (
    "Medium" text,
    "Title" text,
    "Date" text,
    "Theatre, Studio, or Network" text,
    "Role" text
) ### Response: SELECT "Date" FROM table_5940 WHERE "Theatre, Studio, or Network" = 'adelphi'