Zip codes, you write them without even thinking about why you need it, i figured that indeed the real reason was to make mail faster to deliver hence calling it a zip code like for zippy, but in fact the Zip in zip codes stands for Zone improvement plan and they aren’t as old as you think. They started only 50 years ago to make mail a little easier to deliver and sort. In 1963 a large pr campaign used mr. zip a lil cartoon mail man to encourage everyone to use this new number. And it worked because by the late 80’s everyone was sending letters with Zip codes.
Also did you know that there are 42,000 zip codes in the us, and the white house has and empire state building j.w. Westcott a mail delivery boat have their own personal zip codes.
But while 130 countries also use this type of code for mail delivery, there are some countries that do not use them like, Peru, Botswana, and Trinidad and Tobago.