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_225093_4 (vacator VARCHAR, date_successor_seated VARCHAR)
### Question:
How many vacators have October 22, 1808 as date successor seated?
### Answer:
SELECT COUNT(vacator) FROM table_225093_4 WHERE date_successor_seated = "October 22, 1808"