September 27 in History

The Battle of Płowce took place on 27 September 1331 between the Kingdom of Poland and the Teutonic Order.

The 1529 siege of Vienna was the first attempt by the Ottoman Empire to capture the city of Vienna in the Archduchy of Austria, part of the Holy Roman Empire. Suleiman the Magnificent, sultan of the Ottomans, attacked the city with over 100,000 men, while the defenders, led by Niklas Graf Salm, numbered no more than 21,000. Nevertheless, Vienna was able to survive the siege. The siege ultimately lasted just over two weeks, from 27 September to 15 October 1529.

The Battle of Kircholm, 17 September 1605, took place during the Polish–Swedish War (1600–1611) near Kircholm, now Salaspils in Latvia. A Swedish expedition besieging Riga was defeated by a smaller Polish–Lithuanian Commonwealth relief force and abandoned the attempt.

Lancaster is a city in Lancaster County, Pennsylvania, United States, and its county seat. With a population of 58,039 at the 2020 census, it is the eighth-most populous city in the state. It is a core city within South Central Pennsylvania, with 552,984 residents in the Lancaster metropolitan area.

At the end of the Mexican War of Independence, the Army of the Three Guarantees was the name given to the army after the unification of the Spanish troops led by Agustín de Iturbide and the Mexican insurgent troops of Vicente Guerrero, consolidating Mexico's independence from Spain. The decree creating this army appeared in the Plan de Iguala, which stated the three guarantees which it was meant to defend were religion, independence and unity. Mexico was to be a Catholic empire, independent from Spain, and united against its enemies.

The Stockton and Darlington Railway (S&DR) was a railway company that operated in north-east England from 1825 to 1863. The world's first public railway to use steam locomotives, its first line connected collieries near Shildon with Darlington and Stockton in County Durham, and was officially opened on 27 September 1825. The movement of coal to ships rapidly became a lucrative business, and the line was soon extended to a new port at Middlesbrough. While coal waggons were hauled by steam locomotives from the start, passengers were carried in coaches drawn by horses until carriages hauled by steam locomotives were introduced in 1833.

Ellen Southard was an American full-rigged merchant ship from Bath, Maine, that was built in 1863 by prominent shipbuilder T.J. Southard. She plied international trade routes for twelve years, calling at ports as far away as Sydney.

The Ford Piquette Avenue Plant is a former automobile factory located within the Milwaukee Junction area of Detroit, Michigan, United States. Built in 1904, it was the second center of automobile production for the Ford Motor Company, after the Ford Mack Avenue Plant. At the Piquette Avenue Plant, the company created and first produced the Ford Model T, the car credited with initiating the mass use of automobiles in the United States. Prior to the Model T, several other car models were assembled at the factory. Early experiments using a moving assembly line to make cars were also conducted there. It was also the first factory where more than 100 cars were assembled in one day. While headquartered at the Piquette Avenue Plant, Ford Motor Company became the biggest U.S.-based automaker, and it remained so until the mid-1920s. The factory was used by the company until 1910, when its car production activity was relocated to the new, larger Highland Park Ford Plant.

Constantine I was King of Greece from 18 March 1913 to 11 June 1917 and again from 19 December 1920 to 27 September 1922. The eldest son of George I of Greece, he succeeded to the throne following his father's assassination in 1913.

Robert Tyre Jones Jr. was an American amateur golfer who was one of the most influential figures in the history of the sport; he was also a lawyer by profession. Jones founded and helped design Augusta National Golf Club, and co-founded the Masters Tournament. The innovations that he introduced at the Masters have been copied by virtually every professional golf tournament in the world.

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated. World War II was the deadliest conflict in history, causing the death of 60 to 75 million people. Millions died as a result of massacres, starvation, disease, and genocides, including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

SS Patrick Henry was the first Liberty ship launched. It was built by the Bethlehem Shipbuilding Corporation at their Bethlehem-Fairfield Shipyard in Baltimore, Maryland. She was named after Patrick Henry, an American attorney, planter, and Founding Father as well as the first and sixth post-colonial Governor of Virginia, from 1776 to 1779 and 1784 to 1786.

The Kassel Mission on 27 September 1944 was also known as the air battle over the Seulingswald. The mission aimed to destroy the factories in Kassel of the engineering works of Henschel & Sohn which built tracked armoured vehicles and their associated infrastructure. See bombing of Kassel in World War II.

Milburn Grant "Mel" Apt was a U.S. Air Force test pilot, and the first man to attain speeds faster than Mach 3. He was killed after separating from the Bell X-2 in his escape capsule during the record-setting flight that exceeded Mach 3. Shortly afterward, Secretary of the Air Force Donald A. Quarles commended Apt, saying he was "flying faster than any human being has been known to fly."

The Yemen Arab Republic, also known as Yemen (Sanaʽa) and commonly referred to as North Yemen, was a country that existed from 1962 until its unification with the People's Democratic Republic of Yemen in 1990, in the northwestern part of what is now Yemen. Its capital was Sana'a. It bordered South Yemen to the southeast, Saudi Arabia to the north and the Red Sea to the west, sharing maritime borders with Djibouti and the People's Democratic Republic of Ethiopia.

The British Aircraft Corporation TSR-2 was a cancelled supersonic strike and reconnaissance aircraft designed by the British Aircraft Corporation (BAC). It was under development throughout the late 1950s and early 1960s for the Royal Air Force (RAF); the TSR-2 designation came from "Tactical Strike and Reconnaissance, Mach 2".

The last use of capital punishment in Spain took place on 27 September 1975 when two members of the armed left-wing Basque nationalist and separatist group ETA political-military and three members of the Spanish anti-Francoist Marxist–Leninist group Revolutionary Antifascist Patriotic Front (FRAP) were executed by firing squads after having been convicted and sentenced to death by military tribunals for the murder of police officers and civil guards. Spain was Western Europe's only dictatorship at the time of the executions and had been unpopular and internationally isolated in the post-war period due to its relations with Nazi Germany in the 1930s and 1940s and the fact that its far-right autocratic leader, Francisco Franco, had come to power by overthrowing a democratically elected government. As a result, the executions resulted in substantial criticism of the Spanish government, both domestically and abroad. Reactions included street protests, attacks on Spanish embassies, international criticism of the Spanish government and diplomatic measures, such as the withdrawal of the ambassadors of fifteen European countries.

The National League for Democracy is a deregistered liberal democratic political party in Myanmar. It became the country's ruling party after a landslide victory in the 2015 general election but was overthrown in a coup d'état in February 2021 following another landslide election victory in 2020.

The Sukhumi massacre took place on 27 September 1993, during and after the fall of Sukhumi into separatist hands in the course of the War in Abkhazia. It was perpetrated against Georgian civilians of Sukhumi, mainly by militia forces of Abkhaz separatists and North Caucasian allies. It became part of a violent ethnic cleansing campaign carried out by the separatists.

Google LLC is an American multinational technology corporation focused on information technology, online advertising, search engine technology, email, cloud computing, software, quantum computing, e-commerce, consumer electronics, and artificial intelligence (AI). It has been referred to as "the most powerful company in the world" by the BBC, and is one of the world's most valuable brands. Google's parent company Alphabet Inc. has been described as a Big Tech company.

SMART-1 was a European Space Agency satellite that orbited the Moon. It was launched on 27 September 2003 at 23:14 UTC from the Guiana Space Centre in Kourou, French Guiana. "SMART-1" stands for Small Missions for Advanced Research in Technology-1, part of the Small Missions for Advanced Research in Technology programme. On 3 September 2006, SMART-1 was deliberately crashed into the Moon's surface, ending its mission.

Zhai Zhigang is a Chinese major general of the People's Liberation Army Strategic Support Force (PLASSF) in active service as a People's Liberation Army Astronaut Corps (PLAAC) taikonaut. During the Shenzhou 7 mission in 2008, he became the first Chinese citizen to carry out a spacewalk. He was a People's Liberation Army Air Force (PLAAF) fighter pilot before becoming an astronaut.

A volcanic eruption of Mount Ontake took place on September 27, 2014, killing 63 people. Mount Ontake is a volcano located on the Japanese island of Honshu around 100 kilometres (62 mi) northeast of Nagoya and around 200 km (120 mi) west of Tokyo. It was the first fatal volcanic eruption in Japan since the 1991 eruption of Mount Unzen, and the deadliest volcanic eruption in Japan since Torishima killed an estimated 150 people in 1902.

The Second Nagorno-Karabakh War was an armed conflict in 2020 that took place in the disputed region of Nagorno-Karabakh and the surrounding occupied territories. It was a major escalation of an unresolved conflict over the region, involving Azerbaijan, Armenia and the self-declared Armenian breakaway state of Artsakh. The war lasted for 44 days and resulted in Azerbaijani victory, with the defeat igniting anti-government protests in Armenia. Post-war skirmishes continued in the region, including substantial clashes in 2022.