In episode 29, we learn how mail gets from the sender to the recipient so quickly and efficiently.  We also learn the history of the postal service in the United States.  Send Us An E-mail - curiouskidpodcast@gmail.comSupport Us On Patreon - https://www.patreon.com/CuriouskidpodcastFollow Us On Facebook - https://www.facebook.com/curiouskidpod/Follow Us On Instagram - https://www.instagram.com/curiouskidpodcast/Follow Us On Twitter - https://twitter.com/CuriousKidPodPodcast Plug:  Bodaciously Awesome Family Show