About March 5

Churchill's Westminster College address gave a name to the geopolitical fault line splitting East from West, but March 5 had already seen its share of history-shaping moments. In 1616, the Catholic Church finally placed Copernicus's On the Revolutions of the Heavenly Spheres on its Index of Forbidden Books — a staggering 73 years after publication — because heliocentrism had become too dangerous to ignore. In 1836, a young Samuel Colt opened his first factory to build the Paterson revolver, kickstarting an American firearms industry. And in 1872, George Westinghouse patented the air brake, a safety innovation that would make high-speed rail travel viable.

The date also carries a heavy burden of tragedy. The 1770 Boston Massacre, in which British soldiers killed five colonists including Crispus Attucks, helped light the fuse of the American Revolution. In 1940, Stalin and five Politburo members signed the order for the Katyn massacre, condemning 25,700 Polish prisoners and intellectuals to death. And on this day in 1963, country music lost Patsy Cline, Hawkshaw Hawkins, and Cowboy Copas when their plane went down in Tennessee.

March 5 is a day of observances, too. Cornwall celebrates St Piran's Day in honor of its patron saint, while China commemorates Learn from Lei Feng Day, inspired by a model soldier celebrated for selflessness. Meanwhile, in Cornwall and far beyond, dreamy Pisces continues to dominate the zodiac — fitting for a date that has produced visionaries from Mercator to Kahneman.

Holidays & Observances on March 5

  • Learn from Lei Feng Day (China)
  • St Piran's Day (Cornwall)

Fun & National Days on March 5

  • National Absinthe Day — Raise a glass of the storied "green fairy" and toast to bohemian literary tradition.
  • National Cheese Doodle Day — Celebrate by crunching through a bag and admiring your neon-orange fingertips.
  • National Poutine Day — Pile fries with cheese curds and rich gravy in honor of Canada's most indulgent comfort food.
  • Multiple Personality Day — Embrace every facet of your character today — or at least let your alter ego pick the playlist.
  • World Book Day (UK & Ireland) — Dress up, swap a favorite novel, and revel in the magic of stories shared across generations.
  • Cinco de Marcho
  • Nametag Day
  • National Hospitalist Day
  • National Potty Dance Day
  • Reel Film Day

On This Day in History

  • 363 — Emperor Julian marched 90,000 Roman troops out of Antioch toward the Sasanian Empire, a campaign that would ultimately cost him his life.
  • 1496 — King Henry VII granted letters patent to John Cabot and his sons, authorizing their voyages to explore and claim unknown lands across the Atlantic.
  • 1616 — The Catholic Church added Copernicus's heliocentric masterpiece to the Index of Forbidden Books, 73 years after it first appeared in print.
  • 1770 — British soldiers fatally shot five American colonists, including Crispus Attucks, in the Boston Massacre — a flashpoint on the road to revolution.
  • 1836 — Samuel Colt established his first factory to manufacture the Paterson revolver, the production model of his groundbreaking repeating firearm patent.
  • 1872 — George Westinghouse patented the air brake, an invention that revolutionized railroad safety and enabled trains to stop reliably at speed.
  • 1931 — Mahatma Gandhi and Viceroy Lord Irwin signed a pact halting civil disobedience in British India and securing concessions for political prisoners.
  • 1940 — Stalin and five Politburo colleagues signed the execution order for 25,700 Polish intellectuals and POWs, initiating the Katyn massacre.
  • 1946 — Winston Churchill warned that an "iron curtain" had descended across Europe, delivering his famous Cold War-defining speech at Westminster College in Missouri.
  • 1970 — The Treaty on the Non-Proliferation of Nuclear Weapons entered into force after ratification by 43 nations, a landmark arms-control milestone.
  • 1979 — Soviet probes Venera 11 and 12 and the Helios II satellite were struck by enormous gamma-ray bursts, leading to the discovery of soft gamma repeaters.
  • 1981 — Sinclair Research launched the ZX81 home computer, a budget machine that would sell over 1.5 million units and introduce computing to a generation.

Famous Birthdays on March 5

  • 1133 — Henry II of England, King of England whose vast Angevin Empire once stretched from Scotland to the Pyrenees.
  • 1512 — Gerardus Mercator, Flemish cartographer who devised the map projection that still bears his name and shaped modern navigation.
  • 1871 — Rosa Luxemburg, Polish-born revolutionary and Marxist theorist who became a towering figure in German socialist politics.
  • 1887 — Heitor Villa-Lobos, Brazilian composer who fused European classical traditions with South American folk idioms in a vast, acclaimed body of work.
  • 1898 — Zhou Enlai, First Premier of the People's Republic of China and a pivotal diplomat in the early decades of the Communist state.
  • 1908 — Rex Harrison, English stage and screen actor who won Academy Awards for his iconic roles in My Fair Lady and Dr. Doolittle.
  • 1910 — Momofuku Ando, Taiwanese-Japanese inventor of instant ramen and founder of Nissin Foods, who changed global eating habits forever.
  • 1934 — Daniel Kahneman, Israeli-American psychologist and Nobel laureate whose work on behavioral economics reshaped our understanding of decision-making.
  • 1970 — John Frusciante, American guitarist whose melodic work with the Red Hot Chili Peppers defined the band's biggest-selling era.
  • 1974 — Eva Mendes, American actress known for her roles in films like Training Day and Hitch, and a global fashion icon.