$1 Airlift Stamp
On April 4, 1968, the USPS issued a $1 stamp that, when combined with a parcel post stamp, was used to send mail and packages to American service members overseas.
Postal History
Inaugural Run of the Pony Express
On April 3, 1860, the Pony Express made its first trip from St. Joseph, Missouri, to Sacramento, California. Though short-lived, the Pony Express was a revolution in communication, able to transport important letters across the country more than twice as fast as the existing overland mail system.
First Commercial Telegraph Service
On April 1, 1845, the US Post Office Department inaugurated the first commercial telegraph service.
Scarce Imperforate 1908 Lincoln Stamp
On March 30, 1908, the US Post Office issued an imperforate 5¢ Lincoln stamp that nearly went unnoticed by collectors. It was never intended for public sale and could have been lost to time if not for a group of quick-acting collectors.
Founding of New Sweden
On March 29, 1638, the New Sweden Colony was established, encompassing parts of present-day Delaware, New Jersey, and Pennsylvania. The US issued its first three-nation joint issue to commemorate the event in 1988.
Pictorial Series Introduced
On March 19, 1869, the first US Pictorial stamps were issued. Unpopular at the time, today they’re some of the most sought-after classic US stamps.
First U.S. Triangle Stamps
On March 13, 1997, the USPS issued its first triangle-shaped stamps to promote the upcoming Pacific ’97 Stamp Show.
Newspaper & Periodical Stamps
On March 3, 1863, an Act of Congress granted postal agents the ability to accept newspaper bundles, which would lead to the first US Newspaper and Periodical stamps two years later.
America’s First Perforated Stamps
The earliest known use of a US perforated postage stamp was on February 28, 1857. Perforations were introduced to make separating stamps quicker and easier.