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_79 (league VARCHAR, year VARCHAR, position VARCHAR)

### Question ###
What is the league of the third baseman player before 1973?

### Accurate SQL ###

SELECT league FROM table_name_79 WHERE year < 1973 AND position = "third baseman"