SELECT Orders.OrderDate
FROM OrderDetails
INNER JOIN Orders ON OrderDetails.OrderID = Orders.OrderID
INNER JOIN Products ON Products.ProductID = OrderDetails.ProductID
INNER JOIN Customers ON Orders.CustomerID = Customers.CustomerID
WHERE Customers.Country = 'USA' AND (Orders.OrderDate BETWEEN '1996-09-01' AND '1996-09-30')
GROUP BY Orders.OrderDate
ORDER BY Orders.OrderDate ASC;
