North Korea announced it had conducted its first nuclear weapons test, drawing global condemnation and escalating tensions.
📍 Punggye-ri, North Korea
CERN approved plans to build the Large Hadron Collider, the world’s largest and most powerful particle accelerator.
📍 Geneva, Switzerland
Cambodia officially restored its monarchy, transitioning to a constitutional monarchy after years of conflict.
📍 Phnom Penh, Cambodia
World Post Day was established by the Universal Postal Union to commemorate the role of postal services in global communication.
📍 Global
Revolutionary leader Che Guevara was executed by Bolivian forces, ending his campaign to incite global revolution.
📍 La Higuera, Bolivia
The United States officially recognized Leif Erikson Day, honoring the Norse explorer believed to have reached North America before Columbus.
📍 United States
Uganda declared independence from British colonial rule, joining the wave of decolonization across Africa.
📍 Kampala, Uganda
The first underwater telephone cable between the United Kingdom and Norway was completed, enhancing international communication.
📍 United Kingdom / Norway
Pope Pius XII issued the encyclical *Humani Generis*, addressing the relationship between Catholic doctrine and scientific theories.
📍 Vatican City
The United Nations officially adopted its flag, symbolizing global unity and cooperation after World War II.
📍 New York City, United States
Ho Chi Minh declared Vietnam’s independence from France, setting the stage for decades of conflict.
📍 Hanoi, Vietnam
John Lennon, co-founder of The Beatles and influential peace activist, was born in Liverpool, England.
📍 Liverpool, United Kingdom
*The Phantom*, one of the first superhero comic strips, debuted in Italy, influencing global pop culture.
📍 Italy
The first hydroelectric generator at Hoover Dam began operation, providing power to the American Southwest.
📍 Nevada, United States
The first successful two-way telephone conversation between New York and London took place, advancing global communication.
📍 New York, United States / London, United Kingdom
During a rebellion in Brazil, government forces conducted the first aerial bombing in Latin America.
📍 Rio de Janeiro, Brazil
Italy formally annexed Tripoli and Cyrenaica (modern-day Libya), expanding its colonial empire in North Africa.
📍 Libya
The USS Princeton, the first screw-driven steam-powered warship in the U.S. Navy, was commissioned.
📍 Philadelphia, Pennsylvania, United States
Jacques Charles launched the first hydrogen-filled balloon in Paris, marking a breakthrough in aviation history.
📍 Paris, France
King Sejong the Great proclaimed the Korean script Hangul, revolutionizing literacy and communication in Korea.
📍 Korea