Canada Centenary Issue
On May 25, 1967, the Canada Centennial stamp was issued in Montreal – the first time a US stamp had a First Day ceremony in another country.
This Day in History
First Successful Single-Rotor Helicopter Flight
On May 24, 1940, Igor Sikorsky successfully flew the first single-rotor helicopter. Sikorsky developed the world’s first mass-produced helicopter and one of the first American helicopters used in World War II.
South Carolina Admitted to the Union
On May 23, 1788, South Carolina ratified the Constitution, making it America’s eighth state.
Looney Tunes Series and the Rare Bugs Bunny Imperforate Sheet
On May 22, 1997, the USPS issued the first stamp in the Looney Tunes Series, honoring Bugs Bunny. It was the first US stamp to picture a cartoon character. There’s also a 10th stamp imperforate pane that’s the most rare stamp issued in 70 years!
Opening of SIPEX
On May 21, 1966, the Sixth International Philatelic Exhibition opened in Washington, DC. It was planned in just 18 months and saw the issue of some interesting postal firsts!
First Solo Non-Stop Flight Across the Atlantic
On May 20, 1927, Charles Lindbergh began his famous flight across the Atlantic aboard the Spirit of St. Louis. Flying alone for 33 hours across 3,600 miles in stormy weather, he became an instant celebrity and American legend.
Private Mailing Card Act
On May 19, 1898, Congress passed the Private Mailing Card Act. The act allowed private printers to produce their own postcards with the same postage rate as government-issued cards.
Tennessee Valley Authority Created
On May 18, 1933, President Franklin Roosevelt created the Tennessee Valley Authority to provide hydroelectric power to rural areas of six states.
Brown v. Board of Education
On May 17, 1954, the US Supreme Court ordered the desegregation of schools as a result of the case of Brown v. Board of Education.