On Nov. 11, 1918, the Allied nations and Germany signed an armistice ending the fighting in the Great War, which had killed more than 15 million people. A year later, King George V of England proclaimed that date Armistice Day, to be marked with two minutes of silence at 11 a.m., the hour the agreement had gone into effect.

“King Asks British to Pause Two Minutes on Armistice Day,” The New York Times wrote in a front-page headline on Nov. 7, 1919. Days later, the paper reported that Americans would be observing the day, too, with ceremonies around the country.

In a special message to the nation in 1919, President Woodrow Wilson noted the monumental changes that the fierce and bloody war had provoked. The European Allies fought for more than four years, and the Americans for more than a year and a half. None would ever be the same. The fighting had destroyed empires, transformed Europe’s borders, spurred advances in weaponry and manufacturing, and brought millions of women into the work force.