First Flight of the P-51 Mustang
On October 26, 1940, the P-51 Mustang completed its first flight. It went on to take down more enemy planes than any other fighter in Europe and was the United Nations’ main fighter plane during the Korean War.
Air Force
Women in Military Service for America Memorial
On October 18, 1997, the Women in Military Service for America Memorial (WIMSA) was officially dedicated in Arlington County, Virginia. This stamp was issued at the memorial’s dedication ceremony.
U.S. Air Force Established
After 40 years and two wars, the aeronautical division of the US military was established as its own branch, the Air Force, on September 18, 1947. Today, it’s the world’s largest air force.
Champions of Liberty Series
On August 31, 1957, the US Post Office issued an 8¢ stamp honoring Ramon Magsaysay, the first stamp in a new Champions of Liberty Series. The stamps honor patriots who struggled courageously to protect their homelands from tyranny and further the cause of freedom.
Battle of Guam
On July 21, 1944, US troops landed on Guam, initiating a three-week battle to recapture the island. Today, the people of Guam celebrate July 21 as Liberation Day.
US Troops Clear Saipan
On July 9, 1944, American troops claimed victory after a three-week battle on Saipan. Having broken through the Japanese defenses, this enabled the US to launch strategic bombing campaigns.
New Hampshire Becomes 9th State
On June 21, 1788, New Hampshire became the ninth state to ratify the United States Constitution. New Hampshire’s approval of the document put the Constitution into effect and officially made it the United States of America’s ninth state.
Arkansas Becomes 25th State
On June 15, 1836, Arkansas was admitted as the 25th state of the Union. Statehood was hotly debated for 25 hours before being approved and signed into law by President Andrew Jackson.
Allies Win Battle of Midway
On June 7, 1942, the Allies won the Battle of Midway in the Pacific, turning the tide of the war. It’s been called “the most stunning and decisive blow in the history of naval warfare.”