On July 1, 1963, the U.S. Post Office Department introduced the ZIP code program to get a handle on the heaping surplus of mail. Today, those five digits represent much more for American society. Back ...

Add Yahoo as a preferred source to see more of our stories on Google. Nowadays, people don't send letters to one another when they want to catch up. You may get holiday or birthday cards from your ...

It's very easy to chalk up certain facets of our lives to just being "the way it's always been." From daylight savings time to time zones, most of us don't even give a second thought to the meaning ...

For some credit card purchases in Canada, a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead. Use the postal code from the ...

A letter without a ZIP code may not reach its intended destination. That is because of the way addresses are read by automated postal systems. Rules that are taken for granted when people send mail ...