571 years ago today
The Gutenberg Bible: Print Changes the World
On February 23, 1455, Johannes Gutenberg completed the printing of what is widely regarded as the first major book produced using movable type in the Western world — the Gutenberg Bible. Printed in Mainz in an edition of around 180 copies, the Bible demonstrated that the new technology could reproduce complex, beautiful text with unprecedented consistency and speed. Before Gutenberg, books in Europe were laboriously copied by hand, making them rare and expensive; his press reduced the cost of production dramatically and made literacy a realistic aspiration across society. The technology spread rapidly across Europe within decades, enabling the Renaissance, the Reformation, and the Scientific Revolution by allowing ideas to travel faster and further than ever before. The Gutenberg Bible is considered one of the most influential printed objects in human history.
George Frideric Handel
Composer
George Frideric Handel was a German-British Baroque composer whose works include the Messiah, Water Music, and Music for the Royal Fireworks. He spent much of his career in London and became one of the most celebrated composers of his era.
W.E.B. Du Bois
Sociologist, Historian & Civil Rights Activist
W.E.B. Du Bois was a pioneering American scholar and co-founder of the NAACP whose works, including The Souls of Black Folk, shaped the study of race in America. His concept of "double consciousness" described the experience of African Americans navigating a white-dominated society.
Mayer Amschel Rothschild
Banker & Founder of the Rothschild Dynasty
Mayer Amschel Rothschild founded the Rothschild banking dynasty in Frankfurt, building a financial network that spread across Europe through his five sons. His family became the most powerful banking house in the world during the 19th century.
Samuel Pepys
Diarist & Naval Administrator
Samuel Pepys kept a detailed personal diary from 1660 to 1669 that became a vivid first-hand account of Restoration London, including the Great Plague of 1665 and the Great Fire of 1666. He also served as Secretary to the Admiralty and modernised the Royal Navy.
Peter Fonda
Actor & Filmmaker
Peter Fonda co-wrote, produced, and starred in Easy Rider (1969), a counterculture landmark that defined an era of American cinema and launched the careers of Jack Nicholson and Dennis Hopper.
Emily Blunt
Actress
Emily Blunt is an English actress known for acclaimed performances across genres, from The Devil Wears Prada to Edge of Tomorrow and Oppenheimer, for which she won the Academy Award for Best Supporting Actress in 2024.
Diocletian Begins Persecution of Christians
Emperor Diocletian issued an edict ordering the destruction of Christian churches and scriptures throughout the Roman Empire, launching the Diocletianic Persecution — the most severe official suppression of Christianity in Roman history.
Justinian Lays Foundation of Hagia Sophia
Byzantine Emperor Justinian I laid the foundation stone for a new Hagia Sophia in Constantinople after the previous basilica had been destroyed in the Nika riots. The resulting structure became one of the greatest buildings of the ancient world.
Gutenberg Bible Published
Johannes Gutenberg completed printing the first major Western book using movable type — the Gutenberg Bible — marking the dawn of the age of mass communication.
Siege of the Alamo Begins
Mexican General Santa Anna's forces began their siege of the Alamo mission in San Antonio, Texas, where a small garrison of Texian volunteers under William Barret Travis would hold out for 13 days before being overwhelmed.
Aluminum First Produced by Electrolysis
Charles Martin Hall successfully produced the first samples of aluminum through electrolysis in Oberlin, Ohio, a discovery made independently the same year by Paul Héroult in France — a process that made the metal affordable for widespread industrial use.
Zola Imprisoned for J'Accuse
Émile Zola was convicted of criminal libel and sentenced to imprisonment after publishing his open letter J'Accuse, accusing the French government of antisemitism and wrongful conviction in the Dreyfus Affair.
Cuba Leases Guantánamo Bay to the US
Cuba formally leased Guantánamo Bay to the United States "in perpetuity" following American intervention in the Cuban–Spanish–American War, creating a naval base that remains a point of diplomatic contention to this day.
Heisenberg Formulates the Uncertainty Principle
Werner Heisenberg wrote a letter to Wolfgang Pauli outlining his uncertainty principle for the first time — the landmark quantum mechanics insight establishing that the position and momentum of a particle cannot both be known precisely at the same time.
Flag Raised on Iwo Jima
US Marines reached the summit of Mount Suribachi during the Battle of Iwo Jima, where a second, larger American flag was raised and photographed by Joe Rosenthal — producing one of the most iconic images of World War II.
Polio Vaccine Mass Trials Begin
The first mass inoculation of children against polio using Jonas Salk's vaccine began in Pittsburgh, Pennsylvania — the start of a programme that would effectively eliminate polio from the Western Hemisphere within decades.
Attempted Military Coup in Spain
Lieutenant Colonel Antonio Tejero led an armed assault on the Spanish Congress of Deputies, holding parliamentarians at gunpoint in an attempted coup. King Juan Carlos I's personal intervention on television persuaded the military to stand down.
Supernova 1987A Observed
Astronomers detected Supernova 1987A in the Large Magellanic Cloud — the closest and brightest supernova visible from Earth since Kepler's Supernova of 1604 — providing scientists with an unprecedented opportunity to study stellar death in real time.
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Start a conversation →John Keats
Poet
John Keats died of tuberculosis in Rome at just 25 years old, leaving behind odes — including "Ode to a Nightingale" and "To Autumn" — that secured his place among the greatest Romantic poets in the English language.
John Quincy Adams
6th US President
John Quincy Adams died of a stroke in the US Capitol two days after collapsing on the House floor, where he had continued to serve as a congressman for seventeen years after his presidency — an almost unique return to public life.
Carl Friedrich Gauss
Mathematician & Physicist
Carl Friedrich Gauss, often called the "Prince of Mathematics," made transformative contributions to number theory, statistics, and electromagnetism. His work underpins much of modern mathematics and physics.
Stan Laurel
Comedian & Actor
Stan Laurel was the thin, bumbling half of the legendary comedy duo Laurel and Hardy. With partner Oliver Hardy he made over 100 short and feature films that remain beloved classics of slapstick comedy.
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