April 20 (UPI) --On this date in history: In 1871, the U.S. Congress passed the Third Force Act, popularly known as the Ku Klux Klan Act, authorizing President Ulysses S. Grant to declare martial law, ...
After a massive explosion on the Deepwater Horizon drilling rig killed 11 workers on April 20, 2010, millions of gallons of crude oil spewed into the Gulf of Mexico for months, triggering the most ...
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