National days on September 18, 2027

A little reason to celebrate

U.S. Air Force Birthday

History · Commemorative · September 18

The birthday of the U.S. Air Force, the branch of the armed forces built around airpower, and a moment to thank the Airmen who serve in it.

1544: The expedition of Juan Bautista Pastene makes landfall in San Pedro Bay, southern Chile, claiming the territory for Spain. Juan Bautista Pastene
1867: The fourth and current State Constitution of Maryland is ratified by voters. Constitution of Maryland
1910: In Washington, D.C., George Owen Squier demonstrated the first system to allow multiplexing of telephone transmissions, sending a message between two laboratories of the U.S. Signal Corps. George Owen Squier
1927: The Columbia Broadcasting System goes on the air. CBS
1964: The first television adaptation of Charles Addams's "The Addams Family" premieres on ABC Television. The Addams Family (1964 TV series)