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On this day

The Sagamihara stabbings occur in Kanagawa Prefecture in Japan. Nineteen people are killed.

2016

view article

Hillary Clinton becomes the first female nominee for president of the United States by a major political party at the Democratic National Convention in Philadelphia.

2016

view article

Solar Impulse 2 becomes the first solar-powered aircraft to circumnavigate the Earth.

2016

view article

A Royal Moroccan Air Force Lockheed C-130 Hercules crashes near Guelmim Airport in Guelmim, Morocco. All 80 people on board are killed.

2011

view article

The militant Nigerian Islamist group Boko Haram attacks a police station in Bauchi, leading to reprisals by the Nigeria Police Force and four days of violence across multiple cities.

2009

view article

Fifty-six people are killed and over 200 people are injured, in the Ahmedabad bombings in India.

2008

view article

Space Shuttle program: STS-114 Mission: Launch of Discovery, NASA's first scheduled flight mission after the Columbia Disaster in 2003.

2005

view article

Mumbai, India receives 99.5cm of rain (39.17 inches) within 24 hours, resulting in floods killing over 5,000 people.

2005

view article

Kargil conflict officially comes to an end. The Indian Army announces the complete eviction of Pakistani intruders.

1999

view article

Asiana Airlines Flight 733 crashes into a ridge on Mt. Ungeo on its third attempt to land at Mokpo Airport, South Korea. Sixty-eight of the 116 people on board are killed.

1993

view article

The Americans with Disabilities Act of 1990 is signed into law by President George H. W. Bush.

1990

view article

A federal grand jury indicts Cornell University student Robert T. Morris, Jr. for releasing the Morris worm, thus becoming the first person to be prosecuted under the 1986 Computer Fraud and Abuse Act.

1989

view article

The National Assembly of Quebec imposes the use of French as the official language of the provincial government.

1977

view article

Greek Prime Minister Konstantinos Karamanlis forms the country's first civil government after seven years of military rule.

1974

view article

Apollo program: Launch of Apollo 15 on the first Apollo "J-Mission", and first use of a Lunar Roving Vehicle.

1971

view article

Vietnam War: South Vietnamese opposition leader Trương Đình Dzu is sentenced to five years hard labor for advocating the formation of a coalition government as a way to move toward an end to the war.

1968

view article

Syncom 2, the world's first geosynchronous satellite, is launched from Cape Canaveral on a Delta B booster.

1963

view article

An earthquake in Skopje, Yugoslavia (present-day North Macedonia) leaves 1,100 dead.

1963

view article

The Organisation for Economic Co-operation and Development votes to admit Japan.

1963

view article

Explorer program: Explorer 4 is launched.

1958

view article

Carlos Castillo Armas, dictator of Guatemala, is assassinated.

1957

view article

Following the World Bank's refusal to fund building the Aswan Dam, Egyptian leader Gamal Abdel Nasser nationalizes the Suez Canal, sparking international condemnation.

1956

view article

Cold War: Fidel Castro leads an unsuccessful attack on the Moncada Barracks, thus beginning the Cuban Revolution. The movement took the name of the date: 26th of July Movement

1953

view article

Arizona Governor John Howard Pyle orders an anti-polygamy law enforcement crackdown on residents of Short Creek, Arizona, which becomes known as the Short Creek raid.

1953

view article

Soldiers from the 2nd Battalion, Royal Australian Regiment repel a number of Chinese assaults against a key position known as The Hook during the Battle of the Samichon River, just hours before the Armistice Agreement is signed, ending the Korean War.

1953

view article

King Farouk of Egypt abdicates in favor of his son Fuad.

1952

view article

Walt Disney's 13th animated film, Alice in Wonderland, premieres in London, England, United Kingdom.

1951

view article

U.S. president Harry S. Truman signs Executive Order 9981, desegregating the military of the United States.

1948

view article

Cold War: U.S. president Harry S. Truman signs the National Security Act of 1947 into United States law creating the Central Intelligence Agency, United States Department of Defense, United States Air Force, Joint Chiefs of Staff, and the United States National Security Council.

1947

view article

Aloha Airlines begins service from Honolulu International Airport.

1946

view article

The Labour Party wins the United Kingdom general election of July 5 by a landslide, removing Winston Churchill from power.

1945

view article

World War II: The Potsdam Declaration is signed in Potsdam, Germany.

1945

view article

World War II: HMS Vestal is the last British Royal Navy ship to be sunk in the war.

1945

view article

World War II: The USS Indianapolis arrives at Tinian with components and enriched uranium for the Little Boy nuclear bomb.

1945

view article

World War II: The Red Army enters Lviv, a major city in western Ukraine, capturing it from the Nazis. Only 300 Jews survive out of 160,000 living in Lviv prior to occupation.

1944

view article

World War II: Battle of Grand Harbour, British forces on Malta destroy an attack by the Italian Decima Flottiglia MAS. Fort St Elmo Bridge covering the harbour is demolished in the process.

1941

view article

World War II: In response to the Japanese occupation of French Indochina, the United States, Britain and the Netherlands freeze all Japanese assets and cut off oil shipments.

1941

view article

Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.

1937

view article

Spanish Civil War: Germany and Italy decide to intervene in the war in support for Francisco Franco and the Nationalist faction.

1936

view article

King Edward VIII, in one of his few official duties before he abdicates the throne, officially unveils the Canadian National Vimy Memorial.

1936

view article

Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.

1918

view article

United States Attorney General Charles Joseph Bonaparte issues an order to immediately staff the Office of the Chief Examiner (later renamed the Federal Bureau of Investigation).

1908

view article

Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.

1899

view article

Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.

1897

view article

Dadabhai Naoroji is elected as the first Indian Member of Parliament in Britain.

1892

view article

France annexes Tahiti.

1891

view article

In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.

1890

view article

Publication of the Unua Libro, founding the Esperanto movement.

1887

view article

Premiere of Richard Wagner's opera Parsifal at Bayreuth.

1882

view article

The Republic of Stellaland is founded in Southern Africa.

1882

view article

American Civil War: Morgan's Raid ends; At Salineville, Ohio, Confederate cavalry leader John Hunt Morgan and 360 of his volunteers are captured by Union forces.

1863

view article

American Civil War: George B. McClellan assumes command of the Army of the Potomac following a disastrous Union defeat at the First Battle of Bull Run.

1861

view article

The University of Wisconsin–Madison is established by Nelson Dewey, first Governor of Wisconsin.

1848

view article

Liberia declares its independence from the United States. France and the United Kingdom are the first to recognize the new nation.

1847

view article

José de San Martín arrives in Guayaquil, Ecuador, to meet with Simón Bolívar.

1822

view article

First day of the three-day Battle of Dervenakia, between the Ottoman Empire force led by Mahmud Dramali Pasha and the Greek Revolutionary force led by Theodoros Kolokotronis.

1822

view article

The Swedish–Norwegian War begins.

1814

view article

The Surrey Iron Railway, arguably the world's first public railway, opens in south London, United Kingdom.

1803

view article

New York ratifies the United States Constitution and becomes the 11th state of the United States.

1788

view article

The Emigration of Christians from the Crimea in 1778 begins.

1778

view article

The office that would later become the United States Post Office Department is established by the Second Continental Congress. Benjamin Franklin of Pennsylvania takes office as Postmaster General.

1775

view article

French and Indian War: The Siege of Louisbourg ends with British forces defeating the French and taking control of the Gulf of Saint Lawrence.

1758

view article

A French army under Marshal d'Estrées defeats a smaller British-German army under the duke of Cumberland in the battle of Hastenbeck.

1757

view article

The first recorded women's cricket match takes place near Guildford, England.

1745

view article

During the Bavarian Rummel the rural population of Tyrol drove the Bavarian Prince-Elector Maximilian II Emanuel out of North Tyrol with a victory at the Pontlatzer Bridge and thus prevented the Bavarian Army, which was allied with France, from marching as planned on Vienna during the War of the Spanish Succession.

1703

view article

Plakkaat van Verlatinghe (Act of Abjuration): The northern Low Countries declare their independence from the Spanish king, Philip II.

1581

view article

Francis Drake, the English explorer, discovers a "fair and good" bay on the coast of the Pacific Northwest (probably Oregon or Washington).

1579

view article

Francisco Pizarro González, Spanish conquistador, is appointed governor of Peru.

1529

view article

Krishnadevaraya ascends to the throne as Emperor of Vijayanagara, marking the beginning of the regeneration of the Vijayanagara Empire.

1509

view article

Henry VII is recognized King of the Romans (Holy Roman Emperor) by Pope Clement V.

1309

view article

Erfurt latrine disaster: At a Hoftag, a meeting with local notables, organized by Henry VI, the building collapses and many of the nobles in attendance drown in the sewage pits below.

1184

view article

Rout of an alliance of Christian troops from Navarre and Léon against the Muslims at the Battle of Valdejunquera.

920

view article

Battle of Pliska: Byzantine Emperor Nikephoros I is killed and his heir Staurakios is seriously wounded.

811

view article

First Fitna: In the Battle of Siffin, troops led by Ali ibn Abu Talib clash with those led by Muawiyah I.

657

view article

On this day

The Sagamihara stabbings occur in Kanagawa Prefecture in Japan. Nineteen people are killed.

2016

view article

Hillary Clinton becomes the first female nominee for president of the United States by a major political party at the Democratic National Convention in Philadelphia.

2016

view article

Solar Impulse 2 becomes the first solar-powered aircraft to circumnavigate the Earth.

2016

view article

A Royal Moroccan Air Force Lockheed C-130 Hercules crashes near Guelmim Airport in Guelmim, Morocco. All 80 people on board are killed.

2011

view article

The militant Nigerian Islamist group Boko Haram attacks a police station in Bauchi, leading to reprisals by the Nigeria Police Force and four days of violence across multiple cities.

2009

view article

Fifty-six people are killed and over 200 people are injured, in the Ahmedabad bombings in India.

2008

view article

Space Shuttle program: STS-114 Mission: Launch of Discovery, NASA's first scheduled flight mission after the Columbia Disaster in 2003.

2005

view article

Mumbai, India receives 99.5cm of rain (39.17 inches) within 24 hours, resulting in floods killing over 5,000 people.

2005

view article

Kargil conflict officially comes to an end. The Indian Army announces the complete eviction of Pakistani intruders.

1999

view article

Asiana Airlines Flight 733 crashes into a ridge on Mt. Ungeo on its third attempt to land at Mokpo Airport, South Korea. Sixty-eight of the 116 people on board are killed.

1993

view article

The Americans with Disabilities Act of 1990 is signed into law by President George H. W. Bush.

1990

view article

A federal grand jury indicts Cornell University student Robert T. Morris, Jr. for releasing the Morris worm, thus becoming the first person to be prosecuted under the 1986 Computer Fraud and Abuse Act.

1989

view article

The National Assembly of Quebec imposes the use of French as the official language of the provincial government.

1977

view article

Greek Prime Minister Konstantinos Karamanlis forms the country's first civil government after seven years of military rule.

1974

view article

Apollo program: Launch of Apollo 15 on the first Apollo "J-Mission", and first use of a Lunar Roving Vehicle.

1971

view article

Vietnam War: South Vietnamese opposition leader Trương Đình Dzu is sentenced to five years hard labor for advocating the formation of a coalition government as a way to move toward an end to the war.

1968

view article

Syncom 2, the world's first geosynchronous satellite, is launched from Cape Canaveral on a Delta B booster.

1963

view article

An earthquake in Skopje, Yugoslavia (present-day North Macedonia) leaves 1,100 dead.

1963

view article

The Organisation for Economic Co-operation and Development votes to admit Japan.

1963

view article

Explorer program: Explorer 4 is launched.

1958

view article

Carlos Castillo Armas, dictator of Guatemala, is assassinated.

1957

view article

Following the World Bank's refusal to fund building the Aswan Dam, Egyptian leader Gamal Abdel Nasser nationalizes the Suez Canal, sparking international condemnation.

1956

view article

Cold War: Fidel Castro leads an unsuccessful attack on the Moncada Barracks, thus beginning the Cuban Revolution. The movement took the name of the date: 26th of July Movement

1953

view article

Arizona Governor John Howard Pyle orders an anti-polygamy law enforcement crackdown on residents of Short Creek, Arizona, which becomes known as the Short Creek raid.

1953

view article

Soldiers from the 2nd Battalion, Royal Australian Regiment repel a number of Chinese assaults against a key position known as The Hook during the Battle of the Samichon River, just hours before the Armistice Agreement is signed, ending the Korean War.

1953

view article

King Farouk of Egypt abdicates in favor of his son Fuad.

1952

view article

Walt Disney's 13th animated film, Alice in Wonderland, premieres in London, England, United Kingdom.

1951

view article

U.S. president Harry S. Truman signs Executive Order 9981, desegregating the military of the United States.

1948

view article

Cold War: U.S. president Harry S. Truman signs the National Security Act of 1947 into United States law creating the Central Intelligence Agency, United States Department of Defense, United States Air Force, Joint Chiefs of Staff, and the United States National Security Council.

1947

view article

Aloha Airlines begins service from Honolulu International Airport.

1946

view article

The Labour Party wins the United Kingdom general election of July 5 by a landslide, removing Winston Churchill from power.

1945

view article

World War II: The Potsdam Declaration is signed in Potsdam, Germany.

1945

view article

World War II: HMS Vestal is the last British Royal Navy ship to be sunk in the war.

1945

view article

World War II: The USS Indianapolis arrives at Tinian with components and enriched uranium for the Little Boy nuclear bomb.

1945

view article

World War II: The Red Army enters Lviv, a major city in western Ukraine, capturing it from the Nazis. Only 300 Jews survive out of 160,000 living in Lviv prior to occupation.

1944

view article

World War II: Battle of Grand Harbour, British forces on Malta destroy an attack by the Italian Decima Flottiglia MAS. Fort St Elmo Bridge covering the harbour is demolished in the process.

1941

view article

World War II: In response to the Japanese occupation of French Indochina, the United States, Britain and the Netherlands freeze all Japanese assets and cut off oil shipments.

1941

view article

Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.

1937

view article

Spanish Civil War: Germany and Italy decide to intervene in the war in support for Francisco Franco and the Nationalist faction.

1936

view article

King Edward VIII, in one of his few official duties before he abdicates the throne, officially unveils the Canadian National Vimy Memorial.

1936

view article

Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.

1918

view article

United States Attorney General Charles Joseph Bonaparte issues an order to immediately staff the Office of the Chief Examiner (later renamed the Federal Bureau of Investigation).

1908

view article

Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.

1899

view article

Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.

1897

view article

Dadabhai Naoroji is elected as the first Indian Member of Parliament in Britain.

1892

view article

France annexes Tahiti.

1891

view article

In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.

1890

view article

Publication of the Unua Libro, founding the Esperanto movement.

1887

view article

Premiere of Richard Wagner's opera Parsifal at Bayreuth.

1882

view article

The Republic of Stellaland is founded in Southern Africa.

1882

view article

American Civil War: Morgan's Raid ends; At Salineville, Ohio, Confederate cavalry leader John Hunt Morgan and 360 of his volunteers are captured by Union forces.

1863

view article

American Civil War: George B. McClellan assumes command of the Army of the Potomac following a disastrous Union defeat at the First Battle of Bull Run.

1861

view article

The University of Wisconsin–Madison is established by Nelson Dewey, first Governor of Wisconsin.

1848

view article

Liberia declares its independence from the United States. France and the United Kingdom are the first to recognize the new nation.

1847

view article

José de San Martín arrives in Guayaquil, Ecuador, to meet with Simón Bolívar.

1822

view article

First day of the three-day Battle of Dervenakia, between the Ottoman Empire force led by Mahmud Dramali Pasha and the Greek Revolutionary force led by Theodoros Kolokotronis.

1822

view article

The Swedish–Norwegian War begins.

1814

view article

The Surrey Iron Railway, arguably the world's first public railway, opens in south London, United Kingdom.

1803

view article

New York ratifies the United States Constitution and becomes the 11th state of the United States.

1788

view article

The Emigration of Christians from the Crimea in 1778 begins.

1778

view article

The office that would later become the United States Post Office Department is established by the Second Continental Congress. Benjamin Franklin of Pennsylvania takes office as Postmaster General.

1775

view article

French and Indian War: The Siege of Louisbourg ends with British forces defeating the French and taking control of the Gulf of Saint Lawrence.

1758

view article

A French army under Marshal d'Estrées defeats a smaller British-German army under the duke of Cumberland in the battle of Hastenbeck.

1757

view article

The first recorded women's cricket match takes place near Guildford, England.

1745

view article

During the Bavarian Rummel the rural population of Tyrol drove the Bavarian Prince-Elector Maximilian II Emanuel out of North Tyrol with a victory at the Pontlatzer Bridge and thus prevented the Bavarian Army, which was allied with France, from marching as planned on Vienna during the War of the Spanish Succession.

1703

view article

Plakkaat van Verlatinghe (Act of Abjuration): The northern Low Countries declare their independence from the Spanish king, Philip II.

1581

view article

Francis Drake, the English explorer, discovers a "fair and good" bay on the coast of the Pacific Northwest (probably Oregon or Washington).

1579

view article

Francisco Pizarro González, Spanish conquistador, is appointed governor of Peru.

1529

view article

Krishnadevaraya ascends to the throne as Emperor of Vijayanagara, marking the beginning of the regeneration of the Vijayanagara Empire.

1509

view article

Henry VII is recognized King of the Romans (Holy Roman Emperor) by Pope Clement V.

1309

view article

Erfurt latrine disaster: At a Hoftag, a meeting with local notables, organized by Henry VI, the building collapses and many of the nobles in attendance drown in the sewage pits below.

1184

view article

Rout of an alliance of Christian troops from Navarre and Léon against the Muslims at the Battle of Valdejunquera.

920

view article

Battle of Pliska: Byzantine Emperor Nikephoros I is killed and his heir Staurakios is seriously wounded.

811

view article

First Fitna: In the Battle of Siffin, troops led by Ali ibn Abu Talib clash with those led by Muawiyah I.

657

view article

German Peasants' War

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Plane radar is a neat little project that pulls nearby ADS-B traffic, plots each aircraft by distance and bearing, and shows the details directly on a cute little screen.

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We’re on a journey to advance and democratize artificial intelligence through open source and open science.

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Show HN: I mapped every US golf course

Free interactive map of 18,000+ US golf courses — ratings, slope, hole-by-hole scorecards, live weather, public/private status, and tee time booking.

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On this day

The Sagamihara stabbings occur in Kanagawa Prefecture in Japan. Nineteen people are killed.

Hillary Clinton becomes the first female nominee for president of the United States by a major political party at the Democratic National Convention in Philadelphia.

Solar Impulse 2 becomes the first solar-powered aircraft to circumnavigate the Earth.

A Royal Moroccan Air Force Lockheed C-130 Hercules crashes near Guelmim Airport in Guelmim, Morocco. All 80 people on board are killed.

The militant Nigerian Islamist group Boko Haram attacks a police station in Bauchi, leading to reprisals by the Nigeria Police Force and four days of violence across multiple cities.

Fifty-six people are killed and over 200 people are injured, in the Ahmedabad bombings in India.

Space Shuttle program: STS-114 Mission: Launch of Discovery, NASA's first scheduled flight mission after the Columbia Disaster in 2003.

Mumbai, India receives 99.5cm of rain (39.17 inches) within 24 hours, resulting in floods killing over 5,000 people.

Kargil conflict officially comes to an end. The Indian Army announces the complete eviction of Pakistani intruders.

Asiana Airlines Flight 733 crashes into a ridge on Mt. Ungeo on its third attempt to land at Mokpo Airport, South Korea. Sixty-eight of the 116 people on board are killed.

The Americans with Disabilities Act of 1990 is signed into law by President George H. W. Bush.

A federal grand jury indicts Cornell University student Robert T. Morris, Jr. for releasing the Morris worm, thus becoming the first person to be prosecuted under the 1986 Computer Fraud and Abuse Act.

The National Assembly of Quebec imposes the use of French as the official language of the provincial government.

Greek Prime Minister Konstantinos Karamanlis forms the country's first civil government after seven years of military rule.

Apollo program: Launch of Apollo 15 on the first Apollo "J-Mission", and first use of a Lunar Roving Vehicle.

Vietnam War: South Vietnamese opposition leader Trương Đình Dzu is sentenced to five years hard labor for advocating the formation of a coalition government as a way to move toward an end to the war.

Syncom 2, the world's first geosynchronous satellite, is launched from Cape Canaveral on a Delta B booster.

An earthquake in Skopje, Yugoslavia (present-day North Macedonia) leaves 1,100 dead.

The Organisation for Economic Co-operation and Development votes to admit Japan.

Explorer program: Explorer 4 is launched.

Carlos Castillo Armas, dictator of Guatemala, is assassinated.

Following the World Bank's refusal to fund building the Aswan Dam, Egyptian leader Gamal Abdel Nasser nationalizes the Suez Canal, sparking international condemnation.

Cold War: Fidel Castro leads an unsuccessful attack on the Moncada Barracks, thus beginning the Cuban Revolution. The movement took the name of the date: 26th of July Movement

Arizona Governor John Howard Pyle orders an anti-polygamy law enforcement crackdown on residents of Short Creek, Arizona, which becomes known as the Short Creek raid.

Soldiers from the 2nd Battalion, Royal Australian Regiment repel a number of Chinese assaults against a key position known as The Hook during the Battle of the Samichon River, just hours before the Armistice Agreement is signed, ending the Korean War.

King Farouk of Egypt abdicates in favor of his son Fuad.

Walt Disney's 13th animated film, Alice in Wonderland, premieres in London, England, United Kingdom.

U.S. president Harry S. Truman signs Executive Order 9981, desegregating the military of the United States.

Cold War: U.S. president Harry S. Truman signs the National Security Act of 1947 into United States law creating the Central Intelligence Agency, United States Department of Defense, United States Air Force, Joint Chiefs of Staff, and the United States National Security Council.

Aloha Airlines begins service from Honolulu International Airport.

The Labour Party wins the United Kingdom general election of July 5 by a landslide, removing Winston Churchill from power.

World War II: The Potsdam Declaration is signed in Potsdam, Germany.

World War II: HMS Vestal is the last British Royal Navy ship to be sunk in the war.

World War II: The USS Indianapolis arrives at Tinian with components and enriched uranium for the Little Boy nuclear bomb.

World War II: The Red Army enters Lviv, a major city in western Ukraine, capturing it from the Nazis. Only 300 Jews survive out of 160,000 living in Lviv prior to occupation.

World War II: Battle of Grand Harbour, British forces on Malta destroy an attack by the Italian Decima Flottiglia MAS. Fort St Elmo Bridge covering the harbour is demolished in the process.

World War II: In response to the Japanese occupation of French Indochina, the United States, Britain and the Netherlands freeze all Japanese assets and cut off oil shipments.

Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.

Spanish Civil War: Germany and Italy decide to intervene in the war in support for Francisco Franco and the Nationalist faction.

King Edward VIII, in one of his few official duties before he abdicates the throne, officially unveils the Canadian National Vimy Memorial.

Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.

United States Attorney General Charles Joseph Bonaparte issues an order to immediately staff the Office of the Chief Examiner (later renamed the Federal Bureau of Investigation).

Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.

Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.

Dadabhai Naoroji is elected as the first Indian Member of Parliament in Britain.

France annexes Tahiti.

In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.

Publication of the Unua Libro, founding the Esperanto movement.

Premiere of Richard Wagner's opera Parsifal at Bayreuth.

The Republic of Stellaland is founded in Southern Africa.

American Civil War: Morgan's Raid ends; At Salineville, Ohio, Confederate cavalry leader John Hunt Morgan and 360 of his volunteers are captured by Union forces.

American Civil War: George B. McClellan assumes command of the Army of the Potomac following a disastrous Union defeat at the First Battle of Bull Run.

The University of Wisconsin–Madison is established by Nelson Dewey, first Governor of Wisconsin.

Liberia declares its independence from the United States. France and the United Kingdom are the first to recognize the new nation.

José de San Martín arrives in Guayaquil, Ecuador, to meet with Simón Bolívar.

First day of the three-day Battle of Dervenakia, between the Ottoman Empire force led by Mahmud Dramali Pasha and the Greek Revolutionary force led by Theodoros Kolokotronis.

The Swedish–Norwegian War begins.

The Surrey Iron Railway, arguably the world's first public railway, opens in south London, United Kingdom.