The first US Airmail coil stamp was issued on January 15, 1948, in Washington, DC. Only a few more coil stamps would be issued over the next 30 years, but the DC-4 SkyMaster would appear on more than a dozen postal items.
On January 1, 1893, the majority the Columbian stamps were first placed on sale in large cities. The Columbians are some of America’s most famous and sought-after stamps, and are considered the first US commemorative stamps.
On October 18, 1937, the US Post Office issued the first stamp in a new series honoring the overseas territories of the United States. These stamps chronicled decades of US territorial expansion.
On October 8, 2003, the USPS issued its third Semipostal stamp, which raised funds to help stop family violence.
On October 4, 1922, the US Post Office issued the first stamp in Series of 1922-25. This would be the last stamp series printed by the flat plate press.
On September 24, 1966, the US Post Office introduced the American Folklore Series. The series captured the things that make our nation unique. It honored some of the people and tales that have played an important role in our nation’s culture.
On September 23, 1978, the USPS issued the first stamps in its Pioneers of Aviation Series. The series would span more than 20 years and include 18 stamps honoring some of America’s most legendary aviators and their aircraft.
In 2002, twenty years after it was first established, the International Day of Peace was celebrated on its new permanent date – September 21. Also known as World Peace Day, it’s a United Nations-sanctioned holiday calling for peace and an end to war and violence.