18 Things You Didn't Know About the U.S. Postal Service

The United States Postal Service (USPS) is part of our national heritage going all the way back to the Revolutionary War. The Founding Fathers believed a postal system to be so important that they wrote it into the U.S. Constitution, compelling Congress to establish one. As America grew, so did the USPS. The post office — and its ubiquitous postage stamps — became a part of daily life, an important conduit for news and information, a vehicle for commerce, and of course, a way to stay in touch with friends and family. And the changes have kept coming. This year, the USPS announced plans to replace its aging fleet of vans with redesigned vehicles, many of which will be electric. Test your knowledge of USPS history with these postal firsts and facts.

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Postage stamps first appeared in 1847; prior to that, postal clerks simply noted the amount the sender paid on the envelope. The first two official postage stamps were issued on July 1; Ben Franklin graced the 5-cent stamp and George Washington was on the 10-center. Until 1855, postage was based on distance, not weight. Letters traveling less than 300 miles cost 5 cents to send; deliveries of more than 300 miles cost 10 cents.

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The Central Overland California and Pike's Peak Express Company, better known as the Pony Express, operated for less than two years and didn't even begin carrying mail for the USPS on a contract basis until July 1861, just a few months before ceasing operations. And yet the Pony Express and their fleet of riders remain an icon of the nation's frontier days. It took about 10 days for mail to travel from St. Joseph, Missouri, to Sacramento, California, and cost as much as $5 to send a half-ounce letter. 

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William Cooper Nell (1816-74) was a journalist and civil rights activist from Boston who led a years-long effort to desegregate Massachusetts' public schools, something that culminated successfully in 1855. In 1863, the postmaster general of Boston hired Nell as a postal clerk, making him the first African-American employee in the USPS.

The Chicago World's Fair (aka the Columbian Exposition) was a dazzling spectacle on the shores of Lake Michigan, a chance for the growing nation to show off its technological might as it observed the 400th anniversary of Christopher Columbus' arrival in the New World. To honor the event, the post office issued its first-ever commemorative postage: a series of 16 stamps ranging in value from 1 cent to $5. 

As the new century dawned and cities boomed, so did interest in using the automobile to deliver the mail. A trial run in Los Angeles in 1899 led to the first contracted mail route via electric car (yes, those did exist) in 1901 in Minneapolis. A decade on, seven cities had motorized routes, and by the mid-1930s, the automobile had all but replaced the horse-drawn wagon as the primary means of urban mail delivery.

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The postal service had honored plenty of men individually on stamps, but never had featured a woman until Martha Washington appeared on an 8-cent stamp issued in December. Washington wasn't the first female to be depicted on a U.S. postage stamp, however; Queen Isabella of Spain was featured alongside Christopher Columbus on a $4 stamp issued as part of the 1893 Columbian Exposition series. In 1907, Pocahontas became the second woman to be featured on a stamp (and the first Native American). It would be 21 years before another female appeared on postage. 

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Printing postage stamps requires precision, and from time to time a misprint occurs. Usually, these are destroyed as soon as they come off the presses, but once in great while one will slip past the inspectors. Perhaps no postal misprint is more famous than the upside-down Curtiss biplane on this 24-cent stamp, known among collectors as the "Inverted Jenny." A sheet of 100 misprinted stamps first sold to a collector in 1918 for face value — and then was quickly resold for a tidy profit. In 2019, a block of four of these rare stamps from that original misprinted sheet sold for about $1.7 million at auction.

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Postal officials had discussed using airplanes to deliver the mail as early as 1911, but it wasn't until the final months of World War I that it became a reality. The first scheduled air mail route between New York City and Washington, D.C., began in May, using Army planes and pilots. Postage cost 24 cents. By 1920, transcontinental service had been inaugurated, slashing the time it took for a letter to travel across the country in half.

The USPS had been printing stamps for nearly a century before it finally chose to honor an African-American. Booker T. Washington, founder of the Tuskegee Institute, was the first Black man to be featured, appearing on a 10-cent stamp issued in April. A 3-cent stamp commemorating ratification of the 13th Amendment to the Constitution, which abolished slavery, was also issued in 1940. In 1956, the USPS again honored Washington with a 3-cent stamp celebrating his 100th birthday.

For generations, the railroads had been the primary means of transporting mail over long distances. But by 1940, it was clear that transportation's future lay inroads, not rails. To get mail from one region to the next, the USPS launched its Highway Post Office in 1941. These were essentially mail-sorting operations on wheels, servicing an average of 25 post offices along a route. The bus service was discontinued in 1974, and one of the postal buses today can be seen at the Smithsonian's National Postal Museum.

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The USPS has never been shy about experimenting with new means of delivering the mail. One of the weirdest trials occurred in 1959, when a guided missile containing 3,000 letters was launched from the U.S.S. Barbero, bound for the Mayport, Florida, naval auxiliary air station about 100 miles away. The 22-minute voyage so impressed Postmaster General Arthur Summerfeld that he predicted guided missiles would be transporting mail "before man reaches the moon."

With mail volume booming and the nation's suburbs sprawling away from city centers, the USPS needed a more efficient means of organizing and sorting mail for delivery. Enter the Zone Improvement Plan (ZIP) Code, a series of five numbers that delineated the general and specific regional destination of each mailing address in the United States. Unveiled to great fanfare in 1963 (including a mascot, the hyperstylized Mr. ZIP), use of ZIP codes wasn't fully implemented until the decade's end.

Nowadays, all first-class stamps are self-stick, but back in 1974 they were quite the new thing. The USPS issued a special holiday stamp that year with a self-adhesive backing, rather than the traditional lick-and-stick kind. They were sold pre-canceled in an effort to prevent people from reusing them, something consumers found annoying, and they cost exponentially more to print than regular stamps. In 1989, having perfected a cost-effective printing method, the USPS again began selling self-adhesive stamps.

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In the 1970s, the USPS was reorganized as an independent federal agency that was required by law to be financially self-sufficient. Without federal subsidies, the postal service had to squeeze more revenue from stamp prices, and it raised rates four times during the decade. When the Postal Rate Commission voted to do so again in 1978, officials weren't sure if there would be enough stamps with the as-yet-to-be-determined new value available to meet demand. As a stopgap, the USPS released the "A" stamp in May, which had no face value, and bore a simple graphic image of an eagle set against a monochromatic background. It sold at the new first-class rate of 15 cents.

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To promote its upcoming Legends of American Music postage series, the USPS did something new: It asked the public in 1992 to choose the version of the stamp honoring Elvis Presley that would be printed, along with stamps honoring Buddy Holly, Patsy Cline, and Dinah Washington, among others. The young, 1950s-era Elvis won handily over the older '70s-era Elvis, and the winning stamp was released in January of 1993.

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An act of Congress created a new kind of postage stamp called a semipostal. These stamps sold for a premium over the current first-class rate, with the additional proceeds benefiting a designated cause or organization. The first of these stamps, benefiting breast cancer research, was issued in July and has been reissued several times since. As of May 2021, the USPS has raised about $92.6 million in proceeds from this stamp alone. Since then, semipostal stamps have been issued honoring the families of emergency workers killed or injured in the Sept. 11, 2001, terror attacks; victims of domestic violence; international wildlife conservation; and Alzheimer's disease research.

Facing the twin challenges of declining first-class mail volume and rising postal rates, the USPS unveiled "forever" stamps. These postage stamps would always guarantee first-class delivery, no matter how much they originally cost. By 2011, all first-class stamps (except those sold in bulk) were designated as Forever stamps.

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Women have been a part of the postal service since its colonial days. The first female postmaster, Mary Katherine Goddard, worked in Baltimore from 1775-79. In 2015, Megan Brennan — a career postal worker whose brother also worked for the USPS — became the first female postmaster general; she retired in 2020.