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_9 ( rank INTEGER, points VARCHAR, year VARCHAR )

### Question ###
Which Rank is the lowest one that has Points larger than 52, and a Year larger than 1970?

### Accurate SQL ###

SELECT MIN(rank) FROM table_name_9 WHERE points > 52 AND year > 1970