During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
In 1916, a US amendment was proposed to put all acts of war to a national vote. If you voted yes you would have to register as a volunteer for service in the United States Army.
5
In 1918, after the treaty of Versailles (end of WWI), the French Commander-in-chief said "This is not a peace. It is an Armistice for 20 years." 20 years and 65 days later, WWII happened.
31
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
When the Egyptians destroyed Libya in the 13th century B.C. they took 13,230 penises of the conquered enemies as trophies.
220
The handbook issued to US soldiers in Britain during WW2 included the line "The British don't know how to make a good cup of coffee. You don't know how to make a good cup of tea. It's an even swap."
23