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_66950 ( "Date" text, "Visiting Team" text, "Final Score" text, "Host Team" text, "Stadium" text )

### Question ###
Who was the visiting team that played on September 15?

### Accurate SQL ###

SELECT "Visiting Team" FROM table_66950 WHERE "Date" = 'september 15'