June 3

Reconstitution of the Academy of the Distrustful in the Sala Dalmases of the Historical Archive of the City of Barcelona in Barcelona.

Khartoum massacre: In Sudan, over 100 people are killed when security forces accompanied by Janjaweed militiamen storm and open fire on a sit-in protest.

The trial of United States Army private Chelsea Manning for leaking classified material to WikiLeaks begins in Fort Meade, Maryland.

At least 119 people are killed in a fire at a poultry farm in Jilin Province in northeastern China.

A plane carrying 153 people crashes in a residential neighborhood in Lagos, Nigeria, killing everyone on board plus six people on the ground.

The pageant for the Diamond Jubilee of Elizabeth II takes place on the River Thames.

The union of Serbia and Montenegro comes to an end with Montenegro's formal declaration of independence.

After suffering a mechanical failure, a high speed train derails at Eschede, Germany, killing 101 people.

Australian Aboriginal land rights are recognised in Mabo v Queensland (No 2), a case brought by Torres Strait Islander Eddie Mabo which led to the Native Title Act 1993 overturning the long-held colonial assumption of terra nullius.

Mount Unzen erupts in Kyūshū, Japan, killing 43 people, all of them either researchers or journalists.

The government of China sends troops to force protesters out of Tiananmen Square after seven weeks of occupation.

Operation Blue Star, a military offensive, is launched by the Indian government at Harmandir Sahib, also known as the Golden Temple, the holiest shrine for Sikhs, in Amritsar. The operation continues until June 6, with casualties, most of them civilians, in excess of 5,000.

The Israeli ambassador to the United Kingdom, Shlomo Argov, is shot on a London street; he survives but is left paralysed.

The 1980 Grand Island tornado outbreak hits Nebraska, United States, causing five deaths and $300 million (equivalent to $1172 million in 2025) worth of damage.

A blowout at the Ixtoc I oil well in the southern Gulf of Mexico causes at least 3,000,000 barrels (480,000 m3) of oil to be spilled into the waters, the second-worst accidental oil spill ever recorded.

A Soviet supersonic Tupolev Tu-144 crashes near Goussainville, France, killing 14, the first crash of a supersonic passenger aircraft.

Melbourne–Evans collision: off the coast of South Vietnam, the Australian aircraft carrier HMAS Melbourne cuts the U.S. Navy destroyer USS Frank E. Evans in half; resulting in 74 deaths.

The launch of Gemini 4, the first multi-day space mission by a NASA crew. Ed White, a crew member, performs the first American spacewalk.

Soldiers of the South Vietnamese Army attack protesting Buddhists in Huế with liquid chemicals from tear-gas grenades, causing 67 people to be hospitalized for blistering of the skin and respiratory ailments.

At Paris Orly Airport, Air France Flight 007 overruns the runway and explodes when the crew attempts to abort takeoff, killing 130.

Herzog and Lachenal of the French Annapurna expedition become the first climbers to reach the summit of an 8,000-metre peak.

In Los Angeles, California, white U.S. Navy sailors and Marines attack Latino youths in the five-day Zoot Suit Riots.

World War II: Japan begins the Aleutian Islands Campaign by bombing Unalaska Island.

World War II: The Wehrmacht razes the Greek village of Kandanos to the ground and murders 180 of its inhabitants.

World War II: During the Battle of France, the Luftwaffe bombs Paris.

Franz Rademacher proposes plans to make Madagascar the "Jewish homeland", an idea that had first been considered by 19th century journalist Theodor Herzl.

The Duke of Windsor marries Wallis Simpson.

One thousand unemployed Canadian workers board freight cars in Vancouver, beginning a protest trek to Ottawa.

The National Defense Act is signed into law, increasing the size of the United States National Guard by 450,000 men.

Liverpool F.C. is founded by John Houlding.

The first long-distance electric power transmission line in the United States is completed, running 14 miles (23 km) between a generator at Willamette Falls and downtown Portland, Oregon.

In the last military engagement fought on Canadian soil, the Cree leader, Big Bear, escapes the North-West Mounted Police.

American Civil War: Union forces under Ulysses S. Grant sustain heavy casualties attacking Confederate troops under Robert E. Lee at the Battle of Cold Harbor in Hanover County, Virginia.

American Civil War: Robert E. Lee and his Army of Northern Virginia begin marching to invade the North for a second time, starting the Gettysburg campaign.

American Civil War: Battle of Philippi (also called the Philippi Races): Union forces rout Confederate troops in Barbour County, Virginia, now West Virginia.

The last pair of great auks is killed.

In Humen, China, Lin Zexu destroys 1.2 million kilograms of opium confiscated from British merchants, providing Britain with a casus belli to open hostilities, resulting in the First Opium War.

Jack Jouett begins his midnight ride to warn Thomas Jefferson and the Virginia legislature of an impending British raid.

Foundation of the Academy of the Distrustful in the library room of the Palau Dalmases in Barcelona.

James Stuart, Duke of York (later to become King James II of England), defeats the Dutch fleet off the coast of Lowestoft.

Pope Alexander VII appoints François de Laval vicar apostolic in New France.

The Dutch West India Company receives a charter for New Netherland.

Samuel de Champlain lands at Tadoussac, Quebec, in the course of his third voyage to New France, and begins erecting fortifications.

An English naval force defeats a fleet of Spanish galleys, and captures a large Portuguese carrack at the Battle of Sesimbra Bay.

Hernando de Soto claims Florida for Spain.

The Treaty of Novgorod delineates borders between Russia and Norway in Finnmark.

The French scholar Peter Abelard is found guilty of heresy.

After a five-month siege during the First Crusade, the Crusaders seize Antioch.

The Byzantine emperor Philippicus is blinded, deposed and sent into exile by conspirators of the Opsikion army in Thrace. He is succeeded by Anastasios II, who begins the reorganization of the Byzantine army.

The Roman usurper Nepotianus, of the Constantinian dynasty, proclaims himself Roman emperor, entering Rome at the head of a group of gladiators.