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 employees (hire_date INTEGER)

### Question ###
display all the details from Employees table for those employees who was hired before 2002-06-21.

### Accurate SQL ###

SELECT * FROM employees WHERE hire_date < '2002-06-21'