The ZIP Code system is the system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly when senders include the code in the postal address. ZIP+4 is a registered trademark of the United States Postal Service, which also registered ZIP Code as a service mark until 1997, and which claims "ZIP Code" as a trademark though it is not registered.
ZIP codes are introduced for United States mail.
On July 1, in the year 1963, ZIP codes are introduced for United States mail. This event is recorded as a Historical Events event in the history of July 1, one of 534 recorded events on this date across all of history.
Key Facts
- This event took place on July 1, 1963 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 2 Wikipedia articles.
- Wikipedia source last updated on 25 June 2026.
On This Date in History 534
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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