Final answer:
Ben Franklin made two improvements to the postal system: the introduction of postage stamps and the establishment of regular mail routes.
Step-by-step explanation:
Two improvements that Ben Franklin made to the postal system were the introduction of postage stamps and the establishment of regular mail routes.
The introduction of postage stamps made it easier for people to send mail by simplifying the process of prepaying for postage. Prior to this, mail recipients were responsible for paying upon receipt, which led to inconsistent payment and delays in delivery.
Ben Franklin also established regular mail routes, which improved the efficiency and speed of mail delivery. By creating designated routes, mail carriers could follow a set path and ensure more timely and reliable delivery.