WhenslyOn This Day

History on the Timeline

The moments that shaped the world, from antiquity to now. Here’s a taste of the History pack — 218 verified moments and counting.

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  1. 79🌋 Mount Vesuvius erupts with pyroclastic surges that bury Pompeii, Herculaneum, and their inhabitants in ash — preserving a Roman city in suspended time.August 24 →
  2. 1498⛵ Vasco da Gama anchors at Calicut, becoming the first European to reach India by sea around Africa.May 20 →
  3. 1522🌍 Juan Sebastian Elcano sails the Victoria into Spain, completing the first circumnavigation of the globe.September 6 →
  4. 1676💡 Ole Romer publishes the first evidence that light travels at a finite speed, from timing Jupiter's moon Io.December 7 →
  5. 1773🫖 Colonists dressed as Mohawks dump 342 chests of British tea into Boston Harbor to protest taxation without representation.December 16 →
  6. 1786🎭 Mozart conducts the premiere of his comic opera The Marriage of Figaro at Vienna's Burgtheater.May 1 →
  7. 1796💉 Edward Jenner inoculates young James Phipps with cowpox, performing the first smallpox vaccination.May 14 →
  8. 1812❄️ Napoleon's 685,000-strong Grande Armée crosses the Niemen River into Russia, beginning the catastrophic campaign that will destroy his empire.June 24 →
  9. 1831🧲 Michael Faraday discovers electromagnetic induction, showing a changing magnetic field can generate electric current.August 29 →
  10. 1846🪐 Johann Galle finds Neptune within a degree of where Le Verrier's math predicted, confirming a planet by calculation.September 23 →
  11. 1861💥 Confederate forces open fire on Fort Sumter in Charleston Harbor, beginning the American Civil War.April 12 →
  12. 1863🎤 Abraham Lincoln delivers the Gettysburg Address in under two minutes, redefining the Civil War as a fight for human equality.November 19 →
  13. 1872🏞️ President Grant signs the act setting aside Yellowstone, creating the world's first national park.March 1 →
  14. 1883🌉 The Brooklyn Bridge opens over the East River, then the longest suspension bridge anywhere.May 24 →
  15. 1886🥤 Pharmacist John Pemberton's new fountain drink Coca-Cola is first served by the glass at a pharmacy in Atlanta.May 8 →
  16. 1893🎡 George Ferris's giant revolving wheel opens at Chicago's world's fair, towering over the Midway as a new marvel.June 21 →
  17. 1900🤿 The U.S. Navy commissions USS Holland, its first submarine, able to run submerged on electric power.October 12 →
  18. 1907🎉 A glowing illuminated ball descends over Times Square for the first time, ushering in the new year.December 31 →
  19. 1913🩰 Stravinsky's ballet The Rite of Spring premieres in Paris, its radical score causing an uproar in the audience.May 29 →
  20. 1915🌀 Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.November 25 →
  21. 1920🗳️ Tennessee becomes the 36th state to ratify the 19th Amendment, giving American women the right to vote.August 18 →
  22. 1926🚀 Robert Goddard launches the world's first liquid-fueled rocket from a farm in Auburn, Massachusetts.March 16 →
  23. 1929📉 The stock market collapses on Black Tuesday as 16 million shares are sold in a panic, triggering the Great Depression.October 29 →
  24. 1931⛰️ The Christ the Redeemer statue is inaugurated atop Corcovado mountain, the towering symbol of Rio de Janeiro.October 12 →
  25. 1936📺 The BBC launches the world's first regular public high-definition television service from Alexandra Palace.November 2 →
  26. 1939🚁 Igor Sikorsky's VS-300 lifts off the ground for the first time, making the first tethered flight of a practical, single-rotor helicopter.September 14 →
  27. 1944⚓ 156,000 Allied troops storm the beaches of Normandy in the largest seaborne invasion in history.June 6 →
  28. 1945☢️ The United States detonates the first atomic bomb in the New Mexico desert — a blinding flash and mushroom cloud that ushers in the nuclear age.July 16 →
  29. 1948🕊️ The UN General Assembly in Paris adopts the Universal Declaration of Human Rights, championed by Eleanor Roosevelt.December 10 →
  30. 1953🫀 John Gibbon performs the first successful open-heart surgery using his heart-lung machine, repairing Cecelia Bavolek's heart.May 6 →
  31. 1955🚌 Rosa Parks refuses to give up her seat on a Montgomery bus, sparking the 381-day bus boycott and a turning point in the civil rights movement.December 1 →
  32. 1959🌀 Frank Lloyd Wright's spiraling Solomon R. Guggenheim Museum opens to the public in New York City.October 21 →
  33. 1963🚀 Valentina Tereshkova launches aboard Vostok, becoming the first woman to travel into space.June 16 →
  34. 1967🫀 Christiaan Barnard performs the first human heart transplant, giving Louis Washkansky a new heart in Cape Town.December 3 →
  35. 1970🚀 An oxygen tank explosion aboard Apollo 13 forces the crew to abandon the command module and use the lunar module as a lifeboat — "Houston, we have a problem" becomes history.April 13 →
  36. 1975🤝 American and Soviet crews open their hatches and shake hands in orbit, the first international handshake in space.July 17 →
  37. 1980🪐 Voyager 1 makes its closest approach to Saturn, revealing the rings and moons in unprecedented detail.November 12 →
  38. 1986☢️ Reactor No. 4 at the Chernobyl nuclear plant explodes, releasing radiation 400 times the Hiroshima bomb in the worst nuclear disaster in history.April 26 →
  39. 1990🇩🇪 East and West Germany formally reunite into a single state, marked each year as the Day of German Unity.October 3 →
  40. 1994🗳️ South Africa holds its first fully democratic elections, open to all races — Black voters queue for hours to cast a ballot for the first time.April 27 →

Think you can put these in order?

That’s Whensly — a new daily puzzle of real moments on the timeline.

Play today’s puzzle — free on the App Store