United States Postal Service
independent agency of the U.S. federal government responsible for providing postal service
8 dated entries naming United States Postal Service, drawn from 7 separate years between 1792 CE and 1986 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.
Also written as Media mail, United States Post Office in the source articles; Wikipedia redirects those to the same subject, so their entries are on this page.
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18th century
19th century
20th century
- 1918May 15 – The United States Post Office Department begins the world's third regular airmail service, between New York City, Philadelphia and Washington, D.C.source
- 1918May 15 – The United States Post Office Department (later renamed the United States Postal Service) begins the first regular airmail service in the world (between New York City, Philadelphia and Washington, DC).source
- 1920June 13 – The United States Post Office Department rules that children may not be sent via parcel post.source
- 1959June 8 – The USS Barbero and United States Postal Service attempt the delivery of mail via Missile Mail.source
- 1963July 1 – ZIP codes are introduced by the United States Postal Service.source
- 1986August 20 – In Edmond, Oklahoma, United States Postal Service employee Patrick Sherrill guns down 14 of his coworkers before committing suicide.source
Named in the same entries
- New York City (2)
- Philadelphia (2)
- Washington, D.C. (2)
- George Washington (1)