Abraham Lincoln wore size 14 shoes, the biggest in U.S. president history.
The world pours more steel in an hour than it has poured gold since the beginning of recorded history.
WWI was the sixth deadliest conflict in world history.
WWI transformed the U.S. into the largest military power in the world.
WWI allied soldiers would fire thousands of rounds at random over the German trenches to boil the water in their machine guns to make tea.
The youngest soldier to serve during WWI was only 8 years old.
The WWI ended at 11 o'clock in the morning of the 11th day of the 11th month of 1918.
The Spanish flu caused about a third of total military deaths in WWI.
The room of a WWI French soldier is still untouched since 1918.
The last surviving WWI Veteran was a woman. She was a waitress at an air base.