ww1 - Trivia, Quizzes, and Brain Teasers | Mental Floss

Why Is Memorial Day Always on a Monday?

Americans were decorating the graves of fallen soldiers on Memorial Day long before it fell on a Monday.

Why Is Memorial Day Always on a Monday?

Why Do We Have Daylight Saving Time?

Daylight Saving Time steals an hour of precious sleep in the name of energy conservation.

Why Do We Have Daylight Saving Time?

WWI Centennial: Armistice

Imperial War Museum, Wikimedia Commons // Public Domain

WWI Centennial: Armistice

WWI Centennial: Allies Triumph In Italy, German Sailors Mutiny

Indro Montanelli and Mario Cervi, Due Secoli di Guerre, Vol. 7, Wikimedia Commons // CC BY 2.5

WWI Centennial: Allies Triumph In Italy, German Sailors Mutiny

WWI Centennial: Allies Rebuff German Armistice Offer

William Rider-Rider, Imperial War Museum, Wikimedia Commons // IWM Non-Commercial License

WWI Centennial: Central Powers In Collapse

Department of Defense, Department of the Army, Office of the Chief Signal Officer, National Archives and Records Administration // Public Domain

WWI Centennial: Brits Victorious At Megiddo

Photographer unknown, Wikimedia Commons // Public Domain

WWI Centennial: Americans Attack the St. Mihiel Salient; the Flu Turns Deadly

Collier's New Encyclopedia, Wikimedia Commons // Public Domain

The British Codebreaker Who Convinced the U.S. to Join WWI

National Archives

WWI Centennial: Lenin is Shot; Bolsheviks Unleash Red Terror

Keystone/Getty Images

12 Facts About the R.M.S. Lusitania

Hulton Archive/Getty Images

WWI Centennial: Germany Must End War, Generals Admit

Pvt. J.M. Liles, U.S. Army, Wikimedia Commons // Public Domain

WWI Centennial: “The Black Day of the German Army”

David McLellan, Imperial War Museum, Wikimedia Commons // Public Domain

WWI Centennial: The French and Americans Advance On a Broad Front

H.D. Girdwood, Library of Congress, Wikimedia Commons // Public Domain

WWI Centennial: The Tide Turns; the Romanovs are Executed

John Warwick Brooke, Imperial War Museum, Wikimedia Commons // Public Domain

WWI Centennial: July 4 in France

Topical Press Agency/Getty Images