God spoke to end World War I

In 1918 the entire planet fell silent. In the 11th minute of the 11th day of the 11th month, there was a moment of silence to commemorate the end of World War I -- the war to end all wars. Kurt Vonnegut is quoted about that moment in a Macon Telegraph article:

'It was during that minute in nineteen hundred and eighteen, that millions upon millions of human beings stopped butchering one and another,' author and World War II soldier Kurt Vonnegut once wrote about that moment. 'I have talked to old men who were on battlefields during that minute. They have told me in one way or another that the sudden silence was the voice of God. So we still have among us some men who can remember when God spoke clearly to mankind.'

World War I didn't end all wars, so after World War II, Armistice Day was renamed Veterans Day.