Postal Service through the years

Published On: Feb 06 2013 10:05:34 AM CST   Updated On: May 01 2013 11:35:15 AM CDT

Check out landmark moments in U.S. Postal Service history.

Postal Dates - First Airmail
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1918: Scheduled airmail service begins. The first efforts to deliver mail by air in the U.S. dated back to 1859, when a pilot tried unsuccessfully to carry mail via air balloon from Indiana to New York.

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