First circumnavigation completed
The ship Victoria under Juan Sebastián Elcano returns to Spain, completing the circumnavigation begun by Magellan.
The ship Victoria under Juan Sebastián Elcano returns to Spain, completing the circumnavigation begun by Magellan.
The vast silver deposits of Cerro Rico at Potosí begin to be mined, supplying huge quantities of silver to Spain and the world economy.
A global conflict among the European powers fought in Europe, North America and India; Britain gains colonial supremacy and Prussia confirms its great-power status.
The most powerful volcanic eruption in recorded history occurs on Sumbawa, causing the global "Year Without a Summer" of 1816.
Karl Marx and Friedrich Engels publish in London a pamphlet setting out the theory of class struggle, one of the most influential political texts ever written.
The Suez Canal linking the Mediterranean and the Red Sea opens, greatly shortening the sea route between Europe and Asia.
The cataclysmic eruption of Krakatoa in the Sunda Strait triggers tsunamis killing over 36,000 people; the explosion is heard thousands of kilometres away.
The first Summer Olympics of the modern era are held in Athens, organised by the International Olympic Committee.
The first Nobel Prizes are awarded on the fifth anniversary of Alfred Nobel's death; Wilhelm Röntgen receives the first Nobel Prize in Physics.
The Norwegian expedition led by Roald Amundsen becomes the first to reach the geographic South Pole.
Austria-Hungary declares war on Serbia, drawing Europe's powers into a global war that lasts until the armistice of 11 November 1918.
The US-built Panama Canal officially opens, linking the Atlantic and Pacific Oceans.
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 New York stock market collapses in late October, heralding the Great Depression that spreads around the world.
The first World Cup is held in Uruguay; the hosts win the title, beating Argentina 4–2 in the final.
Germany invades Poland, starting the deadliest conflict in human history, which ends with Japan's formal surrender on 2 September 1945.
Roosevelt, Churchill and Stalin meet at Yalta to discuss the post-war reorganisation of Europe and the world.
The UN Charter enters into force after ratification by a majority of signatories.
An international military tribunal tries leading Nazi figures for war crimes and crimes against humanity.
The Geneva Conference ends the First Indochina War, temporarily partitioning Vietnam at the 17th parallel pending elections planned for 1956.
Delegates from 29 Asian and African nations meet in Bandung to promote Afro-Asian cooperation and oppose colonialism, a forerunner of the Non-Aligned Movement.
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.
Iran, Iraq, Kuwait, Saudi Arabia and Venezuela found the Organization of the Petroleum Exporting Countries at the Baghdad Conference.
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.
North Vietnamese and Viet Cong forces attack more than 100 cities and towns in the South; despite heavy losses, the offensive erodes US public support for the war.
Neil Armstrong and Buzz Aldrin become the first humans to walk on the Moon.
Arab oil producers impose an embargo on countries supporting Israel, causing world oil prices to soar.
Hundreds of thousands of people flee Vietnam by sea after 1975; many die at sea and others are resettled, mostly in Western countries.
NASA's Viking 1 lander touches down on Mars and returns the first images from the planet's surface.
NASA launches Voyager 1 to study Jupiter and Saturn; it later becomes the first human-made object to reach interstellar space.
Vietnam becomes the 149th member state of the United Nations.
The World Health Assembly officially declares smallpox eradicated, the first human infectious disease to be wiped out.
A team at the Pasteur Institute including Françoise Barré-Sinoussi and Luc Montagnier reports the virus later named HIV, the cause of AIDS.
ARPANET officially switches to the TCP/IP protocol suite, often regarded as the birth of the modern Internet.
Tim Berners-Lee submits "Information Management: A Proposal" at CERN, the origin of the World Wide Web.
Space Shuttle Discovery carries the Hubble Space Telescope into orbit, where it transforms our understanding of the universe.
Larry Page and Sergey Brin incorporate Google, which becomes the world's most widely used search engine.
The Zarya module is launched from Baikonur, beginning assembly of the multinational International Space Station.
Jimmy Wales and Larry Sanger launch Wikipedia, a free online encyclopedia written collaboratively by volunteers.
The Human Genome Project announces it has sequenced the vast majority of the human genome.
Mark Zuckerberg and fellow students launch the social network Facebook at Harvard; it later reaches billions of users.
Steve Jobs unveils the first iPhone, accelerating the era of touchscreen smartphones.
Vietnam becomes the 150th member of the World Trade Organization.
A person or group using the name Satoshi Nakamoto publishes the white paper describing Bitcoin, the first decentralised cryptocurrency.
Jennifer Doudna and Emmanuelle Charpentier show how CRISPR-Cas9 can cut DNA at chosen sites, launching a revolution in gene editing.
CERN announces that the ATLAS and CMS experiments at the Large Hadron Collider have observed a particle consistent with the Higgs boson.
The LIGO detectors record gravitational waves from two merging black holes, confirming a prediction of general relativity; the result is announced in February 2016.