Emperor Theodosius II is born on April 10, 401 CE. His father Arcadius, Emperor of the Eastern Roman Empire, proclaims him co-Augustus, a title for co-emperor, when he was 9 months old on January 10, 402 AD. He became Emperor when he was seven, after his father death and went on to become one of the longest-reigning emperors of the Eastern Roman Empire.
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On This Day in History: April 10
Explore the historical events that shaped our world on April 10th. From major milestones to cultural achievements, see what happened on this day in history. Dates for earlier events may be approximate.
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Persian scholar Nizam al-Mulk (Abū ʿAlī Ḥasan ibn ʿAlī) was born on April 10, 1018, in Radkan, near Tus, Iran. He became a renowned Persian vizier and political philosopher. He went on to lead the Seljuk Empire for 30 years (1063–1092). He was assassinated in 1092.
The Statute of Anne, the first fully-fledged copyright law, comes into force in Great Britain on April 10, 1710. It shifted rights from publishers to authors, braking the monopoly of the "Stationers' Company", establishing a 14-year protection term for new works (renewable for another 14) and 21 years for existing books.
The first copyright legislation in Great Britain, known as the Statute of Anne comes into force on April 10, 1710.
British-American naval officer, John Paul Jones, serving in the Continental Navy during the American Revolutionary War, sails to the British Isles from Brest, France on April 10, 1778, after taking command of the newly built 18-gun sloop Ranger, with the mission to raid British merchant shipping and warships in the Irish Sea.
Operating out of Brest, Jones cruised to the Irish Sea, capturing or destroying several small vessels. This cruise made Jones a household name in Britain. More
Mount Tambora on the northern coast of Sumbawa island, Indonesia explodes in a violent blast, on April 10, 1815, which blew the mountain apart resulting in one of the most powerful eruptions in recorded human history.
Tambora’s catastrophic activity began on April 5, 1815, with small tremors and pyroclastic flows, followed by Increased steaming and smaller eruptions for up to three years. The effects of the eruptions included major climate changes and a "volcanic winter" in the following year (1816) which is referred to as "the year without summer" The blast, pyroclastic flows, and tsunamis that followed killed at least 10,000 islanders and destroyed the homes of 35,000 more. Before its eruption Mount Tambora was about 4,300 meters (14,000 feet) high. After the eruption ended, a caldera spanning some 6 km (3.7 miles) across remained. The death toll estimate is that at least 71,000 people perished, of which 11,000 –12,000 were killed directly by the eruption. More
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The modern safety pin is invented and patented on April 10, 1849, by Walter Hunt, a mechanic and independent inventor from New York, The design included a clasp to protect the point and a circular twist at the bend for a spring action.
Hunt needed money to pay off a debt he owed to a draftsman and he sold the patent for $400 to W.R. Grace & Co. which later made significant profits from the invention. More
The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded on April 10, 1866 in New York City.
The Professional Golfers' Association of America (PGA) is established on April 10, 1916 in New York City at the Hotel Martinique on 32nd and Broadway. Its first President was Robert White and the inaugural PGA Championship was held in October 1916 at Siwanoy Country Club in Bronxville, New York.
The Thresher (SSN-593), the first of a class of U.S. nuclear-powered attack submarines, sinks on April 10. 1963, approximately 220 miles east of Massachusetts while performing deep dive exercises and carrying a crew of 129 men, in the worst submarine accident in history. The Thresher had been originally launched on July 9, 1960. More
The Belfast Agreement, also known as the Good Friday Agreement, is signed on April 10, 1998 in Belfast, Northern Ireland, after three decades of conflict, known as "the Troubles". The agreement set up a power-sharing arrangement and also restored self-government to Northern Ireland. it was approved by voters on May 22, 1998, and came into force on December 2, 1999. The Agreement still survives today.
Using the Event Horizon Telescope, scientists obtained an image of the black hole at the center of the galaxy M87, and released it on April 10, 2019. The black hole is about 55 million light-years away, in the center in the Virgo cluster. The supermassive black hole has a mass approximately 6.5 billion times that of our Sun.
The Event Horizon Telescope, is a planet-scale array of eight ground-based radio telescopes forged through international collaboration which are not physically connected but are able to synchronize their recorded data with hydrogen masers, a type of atomic clocks which allows the to precisely times their observations. Led by the Center for Astrophysics | Harvard & Smithsonian, the collaboration includes over 300 members aiming to image black holes to test Einstein’s general relativity. The same team of scientists released the first image of the black hole at the center of our own galaxy, Sagittarius A* (Sgr A*), in 2022.