Air Force

 US #3142a – from the Classic American Aircraft Sheet
October 26, 1940

First Flight of the P-51 Mustang

On October 26, 1940, the P-51 Mustang completed its first flight.

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 US #3174 was issued at the dedication ceremony of the memorial.
October 18, 1997

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.

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 US #1119 was issued to mark the 50th anniversary of the school’s founding.
September 14, 1908

America’s First Journalism School 

On September 14, 1908, the University of Missouri School of Journalism became the first such school in the US, and only the second in the world.  (The Superior School of Journalism of Paris opened in 1899.)

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Complete Set, 1957-61 Champions of Liberty Series
August 31, 1957

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.

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2008 42¢ Flags of Our Nation: Guam
July 21, 1944

Battle of Guam 

On July 21, 1944, US troops landed on Guam, initiating a three-week battle to recapture the island.

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1988 65¢ Great Americans: H. H. Hap Arnold Fleetwood First Day Cover (Plate Block)
June 25, 1886

Happy Birthday Henry “Hap” Arnold

General of the Air Force Henry “Hap” Arnold was born on June 25, 1886, in Gladwyne, Pennsylvania. 

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1944 8¢ Twin-Motored Transport
June 22, 1946

First Airmail Carried by Jet

On June 22, 1946, US Airmail was carried by jet for the first time.

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 US #2697g – The US lost the Yorktown and one destroyer while the Japanese lost four aircraft carriers and a heavy cruiser.
June 7, 1942

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.

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1943 2¢ Nations United for Victory
June 4, 1940

The Miracle of Dunkirk 

On June 4, 1940, over 338,000 Allied troops were evacuated from the beaches of Dunkirk after being cut off and surrounded there for weeks.

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