The Electric-Eye Perforator
On February 5, 1935, the US Post Office delivered its first stamps produced using the new electric-eye perforator. This new machine helped ensure better centering of stamps and resulted in a dramatic decrease in waste.
Stamp Series
Motor Vehicle Use Tax Stamps
A tax on motor vehicle use went into effect on February 1, 1942, to help fund World War II. These short-lived stamps were meant to be displayed on the inside of the windshield, to easily show the tax had been paid.
Famed Columbian Stamps Issued
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.
Territorial Series
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.
Stop Family Violence Semipostal
On October 8, 2003, the USPS issued its third Semipostal stamp, which raised funds to help stop family violence.
Pioneers of Aviation Series
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.
International Day of Peace
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.
The American Poet Series
On August 22, 1970, the US Post Office issued the first stamp in the American Poet Series. The series honored seven prolific American poets.
Marihuana Tax Act of 1937
On August 2, 1937, President Franklin Roosevelt signed the Marihuana Tax Act of 1937 into law. The act required all producers, laboratories, dealers, importers, and doctors to register each year to legally buy and sell marijuana.