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 ( venue VARCHAR, year INTEGER )

### Question ###
What is the name of the venue that was used before 1991?

### Accurate SQL ###

SELECT venue FROM table_name_23 WHERE year < 1991