The 1960 Valdivia earthquake (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) on 22 May 1960 is the most powerful earthquake ever recorded. Various studies have placed it at 9.4–9.6 on the moment magnitude scale.
The 23rd amendment gives residents of Washington DC the right to vote for representatives in the Electoral College. … Since DC is not a state, its residents were not allowed to vote for President as well as an elected voting representative to Congress.
On April 17, 1961, 1,400 Cuban exiles launched what became a botched invasion at the Bay of Pigs on the south coast of Cuba. In 1959, Fidel Castro came to power in an armed revolt that overthrew Cuban dictator Fulgencio Batista.
The Bay of Pigs Invasion was a failed landing operation on the southwestern coast of Cuba in 1961 by Cuban exiles who opposed Fidel Castro’s Cuban Revolution.
The country became a fully sovereign nation state within the British Empire, in 1934 following enactment of the Status of the Union Act. The monarchy came to an end on 31 May 1961, replaced by a republic as the consequence of a 1960 referendum, which legitimised the country becoming the Republic of South Africa.
The Cuban Missile Crisis of October 1962 was a direct and dangerous confrontation between the United States and the Soviet Union during the Cold War and was the moment when the two superpowers came closest to nuclear conflict.
Soviet premier Nikita Khrushchev announced that Soviet missiles would be removed from Cuba, putting an end to the Cuban missile crisis. The tense 13-day affair between the US and Soviet Union nearly led to nuclear war.
Citizens in some states had to pay a fee to vote in a national election. This fee was called a poll tax. On January 23, 1964, the United States ratified the 24th Amendment to the Constitution, prohibiting any poll tax in elections for federal officials.
The five states maintained poll taxes which disproportionately affected African-American voters: Virginia, Alabama, Mississippi, Arkansas, and Texas
The Immigration and Nationality Act overhauls the American immigration system. The Act ends the national origin quotas enacted in the 1920s which favored some racial and ethnic groups over others.
The quota system is replaced with a seven-category preference system emphasizing family reunification and skilled immigrants. Upon signing the new bill, President Lyndon B. Johnson, called the old immigration system “un-American,” and said the new bill would correct a “cruel and enduring wrong in the conduct of the American Nation.”
Over the next five years, immigration from war-torn regions of Asia, including Vietnam and Cambodia, would more than quadruple. Family reunification became a driving force in U.S. immigration
The U.S. Army released Bacillus globigii into the tunnels of the New York City Subway system, as part of a field experiment called A Study of the Vulnerability of Subway Passengers in New York City to Covert Attack with Biological Agents. The Chicago subway system was also subject to a similar experiment by the Army
The Twenty-fifth Amendment (Amendment XXV) to the United States Constitution says that if the President becomes unable to do his job, the Vice President becomes the President (Section 1) or Acting President (Sections 3 or 4).
Christiaan Barnard with his team, performed the world’s first human-to-human heart transplant operation on 3 December 1967.
In 1967 Elliot and Ken Hyman acquired Warner Brothers and renamed it Warner Bros.