The torpedo attack killed hundreds of civilians and turned international opinion against Imperial Germany.
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These political challenges have questioned the legitimacy of various governments.
By Orrin Grey
An infamous massacre followed a Native American religious revival.
Discover new perspectives on the scandal that caused Nixon to resign.
By Diana La Paz
Justices have reversed course numerous times throughout the years.
We can trace the system back to a satirical essay by Benjamin Franklin.
This Cold War era initiative ostensibly targeted communists.