On April 30, 1904, the Louisiana Purchase Exposition opened to the public. The largest fair up to that time, opening day also marked the issue of a set of five stamps commemorating the exposition and the purchase.
On April 26, 1907, the Jamestown Exposition opened at Sewell’s Point in Norfolk, Virginia. It celebrated the 300th anniversary of the first permanent English settlement in America.
On April 12, 2007, the USPS issued its first Forever stamp, which featured a patriotic image of the Liberty Bell. Since 2011, all first-class stamps have been Forever stamps.
On April 5, 1906, Congress passed a law calling for the creation of Consular Service Fee stamps. The act also reorganized the consular service to dissuade dishonesty and help keep more accurate records.
On March 31, 1951, Postal Note stamps were discontinued after just six years of use.
On March 29, 1985, the USPS issued its first definitive booklet stamp in the larger commemorative size. It was created for use in vending machines and to test the popularity of the format.
On March 15, 1935, the US Post Office reissued 20 stamps known as “Farley’s Special Printings,” which were the result of the biggest stamp scandal of the time – “Farley’s Follies.”
On March 12, 1888, a short-lived blizzard mail service delivered letters to New York City during one of the worst storms in history.
On February 19, 1914, parents in Idaho took advantage of the affordable Parcel Post rate to mail their daughter to her grandmother’s house. It was one of several instances of people mailing children using stamps.