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_40 (athlete VARCHAR, year VARCHAR, event VARCHAR)
### Question:
Which athlete performed before 1984 in an 800 m event?
### Answer:
SELECT athlete FROM table_name_40 WHERE year < 1984 AND event = "800 m"