China's first nuclear test
China detonates its first atomic bomb at Lop Nur, becoming the world's fifth nuclear power.
Explore world history by year, country, event type, and on this day.
China detonates its first atomic bomb at Lop Nur, becoming the world's fifth nuclear power.
A 13-day standoff between the United States and the Soviet Union over nuclear missiles in Cuba brings the world closest to nuclear war.
At Massachusetts General Hospital, William Morton anaesthetises a surgical patient with ether in public, opening the era of surgical anaesthesia.
The Sumerians of Mesopotamia develop cuneiform, one of humanity's earliest writing systems, first used for economic record-keeping.
By tradition, King Narmer unites Upper and Lower Egypt, beginning the dynastic period of ancient Egypt.
Planned cities such as Mohenjo-daro and Harappa flourish along the Indus, with drainage systems, standardised weights and an undeciphered script.
Confucius, founder of Confucianism, is born in the state of Lu; his teachings shape East Asian culture for over two millennia.
Cyrus II defeats the Median king Astyages, laying the foundation of the Persian Achaemenid Empire, the largest empire of its time.
Siddhartha Gautama attains enlightenment at Bodh Gaya and teaches in the Ganges plain, founding Buddhism.
The state of Qin conquers its rivals, ending the Warring States period; Ying Zheng proclaims himself the First Emperor.
After defeating Xiang Yu, Liu Bang becomes Emperor Gaozu of Han, opening a dynasty that lasts over four centuries.
Julius Caesar is stabbed to death in Rome by senators including Brutus and Cassius on the Ides of March.
The Senate grants Octavian the title Augustus; he becomes the first Roman emperor, inaugurating the Pax Romana.
Emperors Constantine and Licinius agree on religious toleration, ending the persecution of Christians in the Roman Empire.
Odoacer deposes Romulus Augustulus, the last Western Roman emperor, a conventional end of antiquity in Europe.
According to Islamic tradition, Muhammad receives his first revelation in the cave of Hira near Mecca, beginning his prophetic mission.
Li Yuan (Emperor Gaozu) takes the throne at Chang'an, opening one of the most prosperous dynasties in Chinese history.
The Prophet Muhammad and his followers migrate from Mecca to Medina; the year becomes the start of the Islamic calendar.
After Muhammad dies in Medina, Abu Bakr is chosen as the first caliph, beginning the Rashidun Caliphate.
After the Chenqiao mutiny, Zhao Kuangyin becomes Emperor Taizu; the Song era sees remarkable economic and technological growth.
A kurultai proclaims Temüjin as Genghis Khan, founding the Mongol Empire.
King John of England seals Magna Carta at Runnymede, subjecting royal power to the law.
Hulagu's Mongol army takes and devastates Baghdad, killing Caliph al-Musta'sim and ending the Abbasid Caliphate in Baghdad.
Plague arrives at Messina, Sicily, on merchant ships and spreads across Europe, killing roughly a third of its population.
Rebel leader Zhu Yuanzhang becomes the Hongwu Emperor and drives the Mongols from Dadu, ending the Yuan dynasty.
Johannes Gutenberg develops metal movable-type printing in Mainz, launching Europe's printing revolution.
Ottoman forces under Sultan Mehmed II capture Constantinople, ending the Byzantine Empire.
Christopher Columbus's Spanish-sponsored expedition makes landfall on an island in the Bahamas.
Vasco da Gama's fleet left Lisbon, rounded the Cape of Good Hope, sailed up the East African coast and reached Calicut, opening a direct sea route between Europe and Asia.
From the 16th to the 19th century, an estimated 12.5 million enslaved Africans were shipped across the Atlantic to the Americas, with profound consequences for both continents.
Martin Luther publishes his Ninety-five Theses against indulgences, sparking the Protestant Reformation.
Nicolaus Copernicus's On the Revolutions of the Heavenly Spheres is printed, placing the Sun at the centre and launching the Scientific Revolution.
Beginning with a revolt in Bohemia, the conflict spreads across Central Europe, drawing in the major European powers and causing enormous loss of life.
Li Zicheng's rebels take Beijing and the Chongzhen Emperor dies by suicide; weeks later Qing forces enter the city and begin their rule of China.
Isaac Newton publishes "Philosophiæ Naturalis Principia Mathematica", setting out the laws of motion and universal gravitation.
The Continental Congress adopts the Declaration of Independence, proclaiming the 13 colonies free from Britain.
The Constitutional Convention in Philadelphia adopts and signs the US Constitution, creating a federal government with separation of powers.
Parisians storm the Bastille fortress-prison, an iconic moment of the French Revolution.
France's National Constituent Assembly adopts a declaration of liberty, equality and national sovereignty, a founding document of the French Revolution.
Edward Jenner inoculates the boy James Phipps with cowpox material, pioneering vaccination against smallpox.
Napoleon's Grande Armée crosses the Neman into Russia and takes Moscow, but is forced into a winter retreat with catastrophic losses.
Charles Darwin sets out the theory of evolution by natural selection.
War between the Union and the seceding Confederate states, centred on slavery, ending in Union victory and the abolition of slavery.
The Suez Canal linking the Mediterranean and the Red Sea opens, greatly shortening the sea route between Europe and Asia.
King Wilhelm I of Prussia is proclaimed German Emperor in the Hall of Mirrors at Versailles, completing the unification of Germany led by Bismarck.
European powers met in Berlin to set rules for colonial claims in Africa, accelerating the "Scramble for Africa" without any African representation.
At Kitty Hawk, the Wright brothers make the first controlled, powered, heavier-than-air flight.
Albert Einstein publishes four papers on the photoelectric effect, Brownian motion, special relativity and mass–energy equivalence.
A mutiny in Wuchang triggers the Xinhai Revolution, which spreads across the provinces and brings down the Qing dynasty.
Archduke Franz Ferdinand of Austria-Hungary and his wife are shot dead by Gavrilo Princip in Sarajevo, triggering the crisis that leads to the First World War.
Austria-Hungary declares war on Serbia, drawing Europe's powers into a global war that lasts until the armistice of 11 November 1918.
Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences, describing gravity as the curvature of spacetime.
The Bolsheviks led by Lenin overthrow the Provisional Government in Petrograd (25 October in the Julian calendar then used in Russia).
An H1N1 influenza pandemic spreads worldwide, killing tens of millions of people, one of the deadliest pandemics in history.
The peace treaty ending the war between Germany and the Allies is signed in the Hall of Mirrors, imposing war guilt, territorial losses and heavy reparations on Germany.
The Treaty on the Creation of the USSR unites Russia, Ukraine, Belarus and the Transcaucasian Federation into the Union of Soviet Socialist Republics.
The New York stock market collapses in late October, heralding the Great Depression that spreads around the world.
President Paul von Hindenburg appoints Adolf Hitler Chancellor; the Nazis rapidly dismantle Weimar democracy and establish a dictatorship.
A clash between Japanese and Chinese troops near Beijing begins the full-scale Second Sino-Japanese War (1937–1945).
Germany invades Poland, starting the deadliest conflict in human history, which ends with Japan's formal surrender on 2 September 1945.
Nazi Germany and its collaborators systematically murder some six million European Jews, along with millions of other victims.
Nazi Germany and its allies launch a massive invasion of the Soviet Union, opening the Eastern Front, the largest theatre of the Second World War.
The Imperial Japanese Navy launches a surprise attack on the US naval base at Pearl Harbor, Hawaii, bringing the United States into World War II.
The Red Army encircles and forces the surrender of the German Sixth Army, a decisive turning point on the Eastern Front.
Allied forces carry out the largest seaborne invasion in history on the Normandy coast, opening a Western Front to liberate Western Europe.
The Allies formally accept Nazi Germany's unconditional surrender, ending the Second World War in Europe.
The United States detonates the world's first nuclear weapon in the New Mexico desert as part of the Manhattan Project.
The United States drops the first atomic bomb used in war on Hiroshima, killing tens of thousands instantly.
Japan signs the Instrument of Surrender aboard USS Missouri in Tokyo Bay, formally ending the Second World War.
The UN Charter enters into force after ratification by a majority of signatories.
British India is partitioned into the independent dominions of India and Pakistan, accompanied by mass migration and violence.
John Bardeen, Walter Brattain and William Shockley at Bell Labs build the first working transistor, the foundation of modern electronics.
Mao Zedong proclaims the People's Republic of China at Tiananmen.
North Korean forces cross the 38th parallel; the war, drawing in US-led UN forces and China, ends in an armistice in 1953.
James Watson and Francis Crick publish the double-helix model of DNA in Nature, drawing in part on Rosalind Franklin's X-ray diffraction data.
A conflict between North Vietnam and the Viet Cong on one side and South Vietnam, backed by the United States and its allies, on the other; it ends with the fall of Saigon in 1975.
The Soviet Union launches Sputnik 1, Earth's first artificial satellite, opening the Space Age.
In 1960, seventeen African countries gained independence, most of them former French colonies along with Nigeria, Somalia and the Congo.
Soviet cosmonaut Yuri Gagarin orbits the Earth aboard Vostok 1, becoming the first human in space.
A 13-day standoff between the United States and the Soviet Union over nuclear missiles in Cuba brings the world closest to nuclear war.
Mao Zedong launches a decade-long political movement that brings social upheaval, persecution and the destruction of cultural heritage.
Neil Armstrong and Buzz Aldrin become the first humans to walk on the Moon.
The first message is sent between UCLA and the Stanford Research Institute over ARPANET, the precursor of the Internet.
Mass protests topple Shah Mohammad Reza Pahlavi; Ayatollah Khomeini returns and Iran becomes an Islamic Republic.
The Third Plenum of the 11th Central Committee, guided by Deng Xiaoping, shifts China's focus to economic development and opening up.
The World Health Assembly officially declares smallpox eradicated, the first human infectious disease to be wiped out.
Tim Berners-Lee submits "Information Management: A Proposal" at CERN, the origin of the World Wide Web.
East Germany opens its border and crowds cross the Berlin Wall, a symbol of the Cold War's end.
The Supreme Soviet formally dissolves the USSR, a day after Gorbachev's resignation.
Over about 100 days, Hutu extremist forces killed hundreds of thousands of Tutsi, as well as moderate Hutu and Twa, until the Rwandan Patriotic Front took control of the country.
South Africa held its first election with universal suffrage across all races; the ANC won and Nelson Mandela became president, marking the end of apartheid.
Al-Qaeda hijackers attack New York and Washington with four airliners, killing nearly 3,000 people.
The World Health Organization declares the COVID-19 outbreak a global pandemic.
Russia launches a full-scale military invasion of Ukraine, starting the largest war in Europe since the Second World War and displacing millions of people.