Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_21676617_1 ( horse VARCHAR, year VARCHAR )

### Question ###
How many horses are mentioned competing in 1985?

### Accurate SQL ###

SELECT COUNT(horse) FROM table_21676617_1 WHERE year = 1985