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_1137718_2 (rd INTEGER, date VARCHAR)
### Question:
Which rd. occurred on 22 October?
### Answer:
SELECT MIN(rd) FROM table_1137718_2 WHERE date = "22 October"