What happened on September 14

Death of Queen Elizabeth II: The Queen's coffin is taken from Buckingham Palace, placed on a gun carriage of The King's Troop Royal Horse Artillery and moved in a procession to Westminster Hall for her lying in state over the next four days with the queue of mourners stretching for miles along the River Thames.

Yemen's Houthi rebels claim responsibility for an attack on Saudi Arabian oil facilities.

The first observation of gravitational waves is made, announced by the LIGO and Virgo collaborations on 11 February 2016.

Aeroflot Flight 821, a Boeing 737-500, crashes into a section of the Trans-Siberian Railway while on approach to Perm International Airport, in Perm, Russia, killing all 88 people on board.

Prelude to the 2008 financial crisis: Northern Rock bank experiences the first bank run in the United Kingdom in 150 years.

In a referendum, Estonia approves joining the European Union.

Bissau-Guinean President Kumba Ialá is ousted from power in a bloodless military coup led by General Veríssimo Correia Seabra.

Total Linhas Aéreas Flight 5561 crashes near Paranapanema, Brazil, killing both pilots on board.

Historic National Prayer Service held at Washington National Cathedral for victims of the September 11 attacks. A similar service is held in Canada on Parliament Hill, the largest vigil ever held in the nation's capital.

Microsoft releases Windows Me.

Kiribati, Nauru and Tonga join the United Nations.

Telecommunications companies MCI Communications and WorldCom complete their $37 billion merger to form MCI WorldCom.

Eighty-one killed as five bogies of the Ahmedabad–Howrah Express plunge into a river in Bilaspur district of Madhya Pradesh, India.

The rest of the Major League Baseball season is canceled because of a strike.

Lufthansa Flight 2904, an Airbus A320, crashes into an embankment after overshooting the runway at Okęcie International Airport (now Warsaw Chopin Airport), killing two people.

The Constitutional Court of Bosnia and Herzegovina declares the breakaway Croatian Republic of Herzeg-Bosnia to be illegal.

The Standard Gravure shooting where Joseph T. Wesbecker, a 47-year-old pressman, killed eight people and injured 12 people at his former workplace, Standard Gravure, before committing suicide.

Penang Bridge, the longest bridge in Malaysia, connecting the island of Penang to the mainland, opens to traffic.

Joe Kittinger becomes the first person to fly a gas balloon alone across the Atlantic Ocean.

President-elect of Lebanon Bachir Gemayel is assassinated.

Afghan leader Nur Muhammad Taraki is assassinated upon the order of Hafizullah Amin, who becomes the new General Secretary of the People's Democratic Party.

The first American saint, Elizabeth Ann Seton, is canonized by Pope Paul VI.

The Organization of Petroleum Exporting Countries (OPEC) is founded.

Congo Crisis: Mobutu Sese Seko seizes power in a military coup, suspending parliament and the constitution.

The first two German post-war rockets, designed by the German engineer Ernst Mohr, reach the upper atmosphere.

In a top secret nuclear test, a Soviet Tu-4 bomber drops a 40 kiloton atomic weapon just north of Totskoye village.

The Indian Army captures the city of Aurangabad as part of Operation Polo.

World War II: Maastricht becomes the first Dutch city to be liberated by allied forces.

World War II: The Wehrmacht starts a three-day retaliatory operation targeting several Greek villages in the region of Viannos, whose death toll would eventually exceed 500 persons.

Ip massacre: The Hungarian Army, supported by local Hungarians, kill 158 Romanian civilians in Ip, Sălaj, a village in Northern Transylvania, an act of ethnic cleansing.

World War II: The Estonian military boards the Polish submarine ORP Orzeł in Tallinn, sparking a diplomatic incident that the Soviet Union will later use to justify the annexation of Estonia.

Raoul Villain, who assassinated the French Socialist Jean Jaurès, is himself killed by Spanish Republicans in Ibiza.

The Russian Empire is formally replaced by the Russian Republic.

HMAS AE1, the Royal Australian Navy's first submarine, is lost at sea with all hands near East New Britain, Papua New Guinea.

Russian Premier Pyotr Stolypin is shot by Dmitry Bogrov while attending a performance of Rimsky-Korsakov's The Tale of Tsar Saltan at the Kiev Opera House, in the presence of Tsar Nicholas II.

U.S. president William McKinley dies after being mortally wounded on September 6 by anarchist Leon Czolgosz and is succeeded by Vice President Theodore Roosevelt.

American Civil War: The Battle of South Mountain, part of the Maryland Campaign, is fought.

Jang Bahadur and his brothers massacre about 40 members of the Nepalese palace court.

The Ottoman Empire signs the Treaty of Adrianople with Russia, thus ending the Russo-Turkish War.

Battle of Baltimore: The poem Defence of Fort McHenry is written by Francis Scott Key. The poem is later used as the lyrics of The Star-Spangled Banner.

Napoleonic Wars: The French Grande Armée enters Moscow. The Fire of Moscow begins as soon as Russian troops leave the city.

Finnish War: Russians defeat the Swedes at the Battle of Oravais.

The Papal States lose Avignon to Revolutionary France.

American Revolutionary War: Review of the French troops under General Rochambeau by General George Washington at Verplanck's Point, New York.

Seneca warriors defeat British forces at the Battle of Devil's Hole during Pontiac's War.

The British Empire adopts the Gregorian calendar, skipping eleven days (the previous day was September 2).

George Frideric Handel completes his oratorio Messiah.

Grand Master António Manoel de Vilhena lays down the first stone of Fort Manoel in Malta.

Morean War: the Battle of Kalamata ends in a Venetian victory over the forces of the Ottoman Empire under the Kapudan Pasha.

Bishop Gore School, one of the oldest schools in Wales, is founded.

Battle of Homildon Hill: An invading Scottish army under Murdoch Stewart, Duke of Albany and Archibald, Earl Douglas is decimated by a contingent of 500 English archers under the command of George, Earl of March and Henry Percy, 1st Earl of Northumberland.

The first recorded instance of the Catholic practice of perpetual Eucharistic adoration formally begins in Avignon, France.

Genpei War: In the Battle of Ishibashiyama in Japan, the new military commander of the Minamoto clan, Minamoto no Yoritomo, is routed by Ōba Kagechika of the Taira clan.

Roger of Salerno's Crusader army defeats a numerically superior Seljuk army in the battle of Sarmin

Battle of Islandbridge: High King Niall Glúndub is killed while leading an Irish coalition against the Vikings of Uí Ímair, led by King Sitric Cáech.

"Night of the three Caliphs": Harun al-Rashid becomes the Abbasid caliph upon the death of his brother al-Hadi. Birth of Harun's son al-Ma'mun.

Domitian became Emperor of the Roman Empire upon the death of his brother Titus.