History & Society
The origins of dueling are uncertain, but by the 16th century duels had become a popular means of settling real or imagined slights.
Spotlight: World War I
The international conflict was virtually unprecedented in the slaughter, carnage, and destruction it caused, embroiling most of Europe along with Russia, the U.S., the Middle East, and other regions. WWI led to the fall of four great imperial dynasties, resulted in the Bolshevik Revolution, and, by destabilizing Europe, laid the groundwork for WWII.