On May 31, 2002, the USPS issued the first stamp in the American Design Series. The low-denomination stamps feature beautiful objects created by American designers showcasing the country’s various regions, cultures, and history.
On May 28, 2016, the doors opened on America’s 11th International Stamp Exhibition, World Stamp Show 2016. It marked the show’s return to New York after 60 years.
On May 12, 1999, the USPS introduced a new series of Airmail stamps – the Scenic American Landscapes. These were the final Airmail stamps. issued through 2012.
On May 3, 2000, the USPS issued the first stamps in the Distinguished Servicemen Series. These stamps were intended as a tribute to all servicemen, not just the soldiers they pictured.
On May 1, 1929, the Kansas-Nebraska stamps were officially placed on sale. The stamps were intended to put an end to post office robberies but were heavily criticized and short-lived.
On April 26, 1990, the USPS issued the first booklet in its Lighthouse stamp series. The series would last over 30 years and result in some of our most beautiful modern stamps.
On April 25, 1938, the first stamp in the Presidential Series (also known as the Prexies) was issued featuring George Washington. The popular series pictured every deceased US president up to that time, marking the the first postal appearances for 12 US presidents.
On April 12, 1961, the US Post Office issued the first stamp in a five-year series honoring major events from the Civil War. Issued for the war’s 100th anniversary, they were the first US stamps to specifically commemorate the conflict.
On April 9, 1954, the USPS introduced a new set of stamps, the Liberty Series, with the issue of an 8¢ red, white, and blue Statue of Liberty stamp. It replaced the popular Presidential Series (also known as the Prexies), which had been in use for 15 years.