It was too hard to resist National Hot Dog Day, especially since Moffat has visited the Henry Ford Museum in Dearborn, Michigan.  Take a look at the attached Youtube videos for more fun!  Admit it, you know the Oscar Mayer Wiener song!!!

On this day in 1963, the zip (zone improvement plan) code was introduced by the US Postal Service.  The purpose of the zip code was to improve the speed of delivery.  Mr. Zip, a friendly cartoon character, was introduced to encourage Americans to embrace the use of the extra 5 digits at the end of an address.  

Follow the link below to learn more about Mr. Zip from the National Postal Museum