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_name_23 (nation VARCHAR, event VARCHAR)

### Question ###
What nation did the speed skater that set a record in the 1000 metres event represent?

### Accurate SQL ###

SELECT nation FROM table_name_23 WHERE event = "1000 metres"