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When was the Universal Postal Union created?
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A United States Postal Service worker retrieving mail from a mailbox in Manheim, Pennsylvania.
The Universal Postal Union was established following the first International Postal Congress, where representatives from 22 countries signed the Bern Treaty.
While the organization was created as the General Postal Union, it officially came into effect on July 1, 1875. It was later renamed the Universal Postal Union during the second congress in 1878.1