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Period of political liberalization in Czechoslovakia during the era of its domination by the Soviet Union after World War II begins.
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A U.S. B-52 Stratofortress crashes in Greenland, discharging 4 nuclear bombs.
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North Korea captures the USS Pueblo with one American casualty after they claim it entered their territory.
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North Vietnam and Viet Cong begin the Tet Offensive
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Vietnam War mass murder of between 347 and 504 unarmed Vietnamese civilians in South Vietnam.
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U.S. Senator Robert F. Kennedy enters the race for the Democratic Party presidential nomination.
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Lyndon B. Johnson announces he will not run again for presidency.
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Martin Luther King Jr. is assassinated.
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President Lyndon B. Johnson signs the Civil Rights Act of 1968.
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Five thousand students in Paris, France protest and riot, eliciting violence from local police.
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USS Scorpion SSN-589 is lost, 99 crew members killed.
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Senator Robert Kennedy is assassinated after giving a speech in his race for the presidency.
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Bonin Islands are returned to Japan after 23 years of occupation by the United States Navy.
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Black militants led by Fred Evans engage in a fierce gunfight with police in the Glenville Shootout of Cleveland, Ohio.
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Police and military respond to a student-led protest in Mexico City. Hundreds killed or injured.
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LBJ announced a total halt to bombing in Vietnam.
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Nixon wins the election by a narrow margin with 43.4 percent of the popular vote.
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Four men hijack Pan Am Flight 281 from JFK International Airport, New York to Havana, Cuba.
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Release of the USS Pueblo crew after spending 11 months in captivity by the North Koreans.
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The Apollo 8 spacecraft becomes the first to orbit the moon.