'In the trenches' photo (c) 1918, State Library of New South Wales - license: http://www.flickr.com/commons/usage/

Regular readers know I’m a big fan of using “What If?” history in the classroom — see The Best Resources For Teaching “What If?” History Lessons.

It looks like NPR has become a fan of the idea, too. This week, they’re inviting readers to share their visions of what the world would have looked like if World War One hadn’t happened.

See their article, A World Without World War I, Featuring Health-Nut Hitler.