April 24 in History

Troy or Ilion was an ancient city located in present-day Çanakkale, Turkey. It is best known as the setting for the Greek myth of the Trojan War. The archaeological site is open to the public as a tourist destination, and was added to the UNESCO World Heritage list in 1998.

The Abbasid caliphs were the holders of the Islamic title of caliph who were members of the Abbasid dynasty, a branch of the Quraysh tribe descended from the uncle of the Islamic prophet Muhammad, Al-Abbas ibn Abd al-Muttalib.

Mary, Queen of Scots, also known as Mary Stuart or Mary I of Scotland, was Queen of Scotland from 14 December 1542 until her forced abdication on 24 July 1567.

Jean-Paul Marat was a French political theorist, physician, and scientist. A journalist and politician during the French Revolution, he was a vigorous defender of the sans-culottes, a radical voice, and published his views in pamphlets, placards and newspapers. His periodical L'Ami du peuple made him an unofficial link with the radical Jacobin group that came to power after June 1793.

The Russo-Turkish War (1877–1878) was a conflict between the Ottoman Empire and a coalition led by the Russian Empire which included Romania, Serbia, and Montenegro. Precipitating factors included the Russian goals of recovering territorial losses endured during the Crimean War of 1853–1856, re-establishing itself in the Black Sea and supporting the political movement attempting to free Balkan nations from the Ottoman Empire.

Joshua Slocum was the first person to sail single-handedly around the world. He was a Nova Scotian-born, naturalised American seaman and adventurer, and a noted writer. In 1900 he wrote a book about his journey, Sailing Alone Around the World, which became an international best-seller. He disappeared in November 1909 while aboard his boat, the Spray.

The Franck–Hertz experiment was the first electrical measurement to clearly show the quantum nature of atoms. It was presented on 24 April 1914, to the German Physical Society in a paper by James Franck and Gustav Hertz. Franck and Hertz had designed a vacuum tube for studying energetic electrons that flew through a thin vapour of mercury atoms. They discovered that when an electron collided with a mercury atom, it could lose only a specific quantity of its kinetic energy before flying away. This energy loss corresponds to decelerating the electron from a speed of about 1.3 million metres per second to zero. A faster electron does not decelerate completely after a collision, but loses precisely the same amount of its kinetic energy. Slower electrons merely bounce off mercury atoms without losing any significant speed or kinetic energy.

The Easter Rising, also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916. The Rising was launched by Irish republicans against British rule in Ireland with the aim of establishing an independent Irish Republic while the United Kingdom was fighting the First World War. It was the most significant uprising in Ireland since the rebellion of 1798 and the first armed conflict of the Irish revolutionary period. Sixteen of the Rising's leaders were executed starting in May 1916. The nature of the executions, and subsequent political developments, ultimately contributed to an increase in popular support for Irish independence.

World War I, or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. Major theatres of war included Europe and the Middle East, and well as parts of Africa and the Asia-Pacific. One of the deadliest conflicts in history, World War I resulted in an estimated 15 to 22 million deaths, including in mass war crimes against civilians and genocides. The conflict saw important developments in weaponry, including the first large-scale use of machine guns, artillery, aircraft, chemical weapons, and tanks, and was a major factor in the deadly Spanish flu pandemic.

Thorvald August Marinus Stauning was the first social democratic prime minister of Denmark. He served as prime minister from 1924 to 1926 and again from 1929 until his death in 1942.

Bernard "Benny" Rothman was a British political activist. He is known for organizing the mass trespass of Kinder Scout in 1932, which led to the establishment of the National Parks and Access to the Countryside Act 1949.

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.

The first large-scale Asian–African or Afro–Asian Conference, also known as the Bandung Conference, was a meeting of Asian and African states, most of which were newly independent, which took place on 18–24 April 1955 in Bandung, West Java, Indonesia. The twenty-nine countries that participated represented a total population of 1.5 billion people, 54% of the world's population. The conference was organized by Indonesia, Burma (Myanmar), India, Ceylon, and Pakistan and was coordinated by Ruslan Abdulgani, secretary general of the Ministry of Foreign Affairs of the Republic of Indonesia.

Princess Alexandra, The Honourable Lady Ogilvy, is a member of the British royal family. She is the only daughter of Prince George, Duke of Kent, and Princess Marina of Greece and Denmark, the only living granddaughter of George V, a niece of Edward VIII and George VI, and a first cousin of Elizabeth II. Alexandra's mother was also a first cousin of Prince Philip, Duke of Edinburgh, consort of Elizabeth II, making her both a second cousin and first cousin once removed of Charles III.

An astronaut is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member of a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and space tourists. In the United States, it is a designated term used by three agencies: NASA, the FAA, and the military. The term is also used for people who are trained to fly in a spacecraft after passing certain training courses, regardless of their experience of space travel.

Dong Fang Hong 1, in the western world also known as China 1 or PRC 1, was the first space satellite of the People's Republic of China (PRC), launched successfully on 24 April 1970 as part of the Dongfanghong program. It was a part of the "Two Bombs, One Satellite" program. At 173 kg (381 lb), it was heavier than the first satellites of other countries. The satellite carried a radio transmitter which broadcast the then de facto national anthem of the same name. The broadcast lasted for 20 days while in orbit.

Operation Eagle Claw was a failed United States Department of Defense attempt to rescue 52 embassy staff held captive by Revolutionary Iran on 24 April 1980. It was ordered by U.S. president Jimmy Carter after the staff were seized at the Embassy of the United States, Tehran. The operation, one of Delta Force's first, encountered many obstacles and failures and was subsequently aborted. Eight helicopters were sent to the first staging area in Great Salt Desert called Desert One, but only five arrived in operational condition. One had encountered hydraulic problems, another was caught in a sand storm, and the third showed signs of a cracked rotor blade. During the operational planning, it was decided that the mission would be aborted if fewer than six helicopters remained operational upon arrival at the Desert One site, despite only four being absolutely necessary. The field commanders advised President Carter to abort the mission, which he did.

Gruinard Island is a small, oval-shaped Scottish island approximately two kilometres long by one kilometre wide, located in Gruinard Bay, about halfway between Gairloch and Ullapool. At its closest point to the mainland, it is about one kilometre offshore. In 1942, the island became a sacrifice zone, and was dangerous for all mammals after military experiments with the anthrax bacterium, until it was decontaminated in 1990.

The Douglas DC-3 is a propeller-driven airliner that was manufactured by the Douglas Aircraft Company. It had a lasting effect on the airline industry from the 1930s through World War II. It was developed as a larger, improved, 14-bed sleeper version of the Douglas DC-2. It is a low-wing metal monoplane with conventional landing gear, powered by two radial piston engines of 1,000–1,200 hp (750–890 kW). Although the DC-3s originally built for civil service had the Wright R-1820 Cyclone, later civilian DC-3s used the Pratt & Whitney R-1830 Twin Wasp engine. The DC-3 has a cruising speed of 207 mph (333 km/h), a capacity of 21 to 32 passengers or 6,000 lb (2,700 kg) of cargo, and a range of 1,500 mi (2,400 km); it can operate from short runways.

Economic sanctions or embargoes are commercial and financial penalties applied by states or institutions against states, groups, or individuals. Economic sanctions are a form of coercion that attempts to get an actor to change its behavior through disruption in economic exchange. Sanctions can be intended to compel or deter.

Three bomb attacks on the Egyptian resort city of Dahab, in the Sinai Peninsula, took place on 24 April 2006. The resort town is popular with Western tourists and Egyptians alike during the holiday season.

The Rana Plaza collapse occurred on 24 April 2013 in Savar Upazila, near Dhaka, Bangladesh, when the eight-story Rana Plaza commercial building collapsed due to a structural failure. The search for survivors lasted for 19 days and ended on 13 May 2013, with a confirmed death toll of 1,134. Approximately 2,500 injured people were rescued from the building. It is considered to be one of the deadliest structural failures in modern human history, as well as the deadliest garment-factory disaster in history, and is the deadliest industrial accident in the history of Bangladesh. Amnesty International called it "the most shocking recent example of business-related human rights abuse."

On 24 April 2025, a teenage girl was killed and three students were wounded in a mass stabbing at a private secondary school, Our Lady of All Helps High School in Nantes, Loire-Atlantique, France. The suspected attacker was a 15-year-old male student and was arrested by law enforcement at the scene, after being restrained by a teacher.