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 customers ( customer_name VARCHAR, customer_id VARCHAR )
TABLE: CREATE TABLE orders ( customer_id VARCHAR, date_order_placed VARCHAR )

### Question ###
Give me the names of customers who have placed orders between 2009-01-01 and 2010-01-01.

### Accurate SQL ###

SELECT T1.customer_name FROM customers AS T1 JOIN orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.date_order_placed >= "2009-01-01" AND T2.date_order_placed <= "2010-01-01"