In this photo, taken on a September 1918 day in Boston, a proud military officer stands tall on top of a pile of something that would save thousands of lives on European battle fronts -- peach pits.

On June 2, 1918, during Germany’s spring offensive offensive on the Western Front, a French unit pulling back to more defensible ground encountered a newly arrived company of Marines marching straight ...

Editor’s Note, May 11, 2022: This article previously suggested that John Haldane was the first person to invent a gas mask. In fact, Garrett Morgan, a Black inventor based in Ohio, filed a patent for ...

World War One (WWI), known as the “chemists’ war,” was the first time that chemical weapons were used for killing thousands of people on the battlefield at a time. By the war’s end, world leaders ...