Alan Turing, the mathematician who cracked German wartime codes and laid foundations for computer science, was found dead at his home near Manchester.

IBM introduced the 704, the first mass-produced computer with built-in floating-point arithmetic hardware, a machine that would later run the first FORTRAN compiler.

Surgeons at Boston's Peter Bent Brigham Hospital performed the first successful kidney transplant, between identical twins Richard and Ronald Herrick.

The U.S. detonates Castle Bravo at Bikini Atoll, its most powerful nuclear test ever, yielding far more force than predicted and spreading fallout across inhabited islands.

RCA's CT-100, the first mass-produced color television set, went on sale to the American public with a price tag around $1,000 — roughly the cost of a small car.

Viet Minh forces overran the French fortress at Dien Bien Phu after a 57-day siege, ending French colonial rule in Indochina.

The U.S. Supreme Court unanimously ruled that racial segregation in public schools was unconstitutional, overturning 'separate but equal.'

The largest medical experiment in history began as nearly two million American schoolchildren received Jonas Salk's polio vaccine or placebo in a massive field trial.

The Geneva Conference concluded with agreements partitioning Vietnam at the 17th parallel, ending French colonial rule and setting the stage for decades of war.

Ho Chi Minh addressed cadres following the Geneva Accords, which had partitioned Vietnam at the 17th parallel days earlier, setting the stage for decades of conflict.

The FLN launched coordinated attacks across Algeria, igniting an eight-year war of independence that would topple governments in Paris and reshape French colonialism.

The National Liberation Front launched coordinated attacks across Algeria, marking the start of an eight-year war against French colonial rule.

Following coordinated FLN attacks that began the day before, French authorities respond with mass arrests as the Algerian War of Independence begins in earnest.

Researchers using IBM's Naval Ordnance Research Calculator, then the world's fastest computer, pushed to compute pi to unprecedented digits.

Surgeons in Boston performed the first successful human organ transplant, giving Richard Herrick a kidney from his identical twin brother Ronald.