On October 26, 1881, the Earp brothers took on the Clanton-McLaury Gang at the OK Corral in Tombstone, Arizona. The shootout became one of the most famous events in the Old West.
On October 19, 1929, the US Post Office issued a 2¢ commemorative honoring the canalization of the Ohio River. It came as the culmination of over 50 years of work on the project, which was a major engineering feat.
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 15, 1940, the Pitcairn Islands Post Office opened, issuing the colony’s first stamps. These stamps were very popular with collectors and eventually helped support most of the colony’s budget.
On October 14, 1975, the USPS issued its first non-denominated postage stamps. The two Christmas stamps were issued without denominations because the USPS was unsure about an upcoming rate change.
On October 13, 1953, the US Post Office issued a 3¢ stamp honoring the 25th anniversary of the Future Farmers of America. It was issued at the place the organization was founded – Kansas City, Missouri.
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.