January
Researchers reported early evidence of penicillin-resistant staphylococcus spreading in hospitals, foreshadowing the coming antibiotic resistance crisis.
February
US Navy ships helped evacuate 15,000 Nationalist Chinese troops and civilians from the Dachen Islands as Communist forces closed in during the First Taiwan Strait Crisis.
March
J.R.R. Tolkien fixed March 25 as the date the One Ring was destroyed in Mount Doom, the climax of 'The Lord of the Rings.'
April
Pathologist Thomas Harvey removed Albert Einstein's brain during autopsy without family permission, hoping to unlock the secrets of his genius.
June
Argentine navy and air force officers bombed Plaza de Mayo in an attempted coup against President Juan Perón, killing over 300 civilians.
"Rock Around the Clock" by Bill Haley & His Comets began its meteoric rise up the American charts, helping ignite the rock and roll era among mainstream white audiences.
July
A day before its public opening, Disneyland hosted a disastrous invitation-only preview marred by counterfeit tickets, melting asphalt, and plumbing failures.
Walt Disney opened Disneyland in Anaheim, California, to a disastrous preview day plagued by counterfeit tickets, wet asphalt, and a gas leak.
August
IBM's programming team, led by John Backus, distributed a preliminary specification for FORTRAN, laying groundwork for the first widely used high-level programming language.
September
General Eduardo Lonardi seizes power in Argentina's 'Revolución Libertadora,' forcing President Juan Perón into exile after nearly a decade of rule.
October
Chuck Berry recorded his breakout single at Chess Records, blending blues, country, and showmanship into the template for rock and roll guitar.
William Henry Gates III was born in Seattle, Washington, the future co-founder of Microsoft and architect of the personal computer software industry.
November
Sultan Mohammed V returns triumphantly to Morocco from exile, a decisive step toward ending French colonial rule and gaining independence.
December
Rosa Parks refused to give up her Montgomery bus seat to a white passenger, sparking a 381-day boycott that reshaped the civil rights movement.
Black residents of Montgomery, Alabama launched a bus boycott after Rosa Parks' arrest, electing a young pastor named Martin Luther King Jr. to lead it.
The United Nations General Assembly admits sixteen new member nations in a single day, the largest expansion in the organization's history to that point, ending years of Cold War deadlock.