December 15: Holidays, Historical Events, Famous Birthdays & Zodiac Sign
On December 15, 1791, Virginia's ratification transformed the first ten U.S. constitutional amendments into the Bill of Rights—forever embedding individual liberties into American law.
About December 15
December 15 carries a remarkable dual identity in the United States: it is the day the Bill of Rights officially became law in 1791, when the Virginia General Assembly cast the decisive ratification vote. Americans now observe this as Bill of Rights Day, celebrating the foundational guarantees of free speech, press, and religion. Meanwhile, South Carolina recognizes 2nd Amendment Day on the same date, highlighting how the constitutional text continues to shape passionate public discourse.
Globally, the date brims with cultural and scientific firsts. In 1893, Antonín Dvořák's stirring From the New World Symphony echoed through Carnegie Hall for the first time during a public afternoon rehearsal. Fast-forward to 1970, and the Soviet Union's Venera 7 achieved humanity's first soft landing on another planet—touching down on the scorching surface of Venus and transmitting data back to Earth.
It is also the birthday of L. L. Zamenhof, the Polish ophthalmologist who dreamed up Esperanto, a universal language meant to bridge cultural divides. The international Esperanto community still honors him every December 15 as Zamenhof Day. And for a sweeter milestone: in 1903, an Italian American food vendor named Italo Marchiony patented a machine for crafting ice cream cones, forever changing how the world enjoys dessert.
Holidays & Observances on December 15
- Bill of Rights Day (United States) 2nd Amendment Day (South Carolina)
- Homecoming Day (Alderney)
- Kingdom Day (Netherlands), moves to December 16 if the 15th is on a Sunday
- Zamenhof Day (International Esperanto Community)
- World Turkic Language Family Day (UNESCO)
Fun & National Days on December 15
- Cat Herders' Day — Pour a drink and toast anyone managing the impossible—because some days, herding cats is exactly what life feels like.
- International Tea Day — Brew a fresh pot of your favorite leaves and savor the global comfort found in a single, steaming cup of tea.
- National Cupcake Day — Frost a miniature cake and share it—because joy is best served in perfectly portioned, sprinkled individual packages.
- National Wear Your Pearls Day — String on your finest pearls and channel grace under pressure, honoring the beauty that forms around life's irritations.
- International Jewish Book Day
- National Gingerbread Latte Day
- National Lemon Cupcake Day
On This Day in History
- 533 — Byzantine general Belisarius crushed Vandal forces under King Gelimer at the Battle of Tricamarum, securing North Africa for Emperor Justinian.
- 1256 — Mongol troops led by Hulagu breached and dismantled the Nizari Ismaili fortress at Alamut Castle in present-day Iran, ending the legendary Assassins' mountain stronghold.
- 1467 — Stephen III of Moldavia defeated Hungary's Matthias Corvinus—wounded three times in the fray—at the Battle of Baia, preserving Moldavian independence.
- 1791 — The Virginia General Assembly ratified the United States Bill of Rights, officially enshrining the first ten constitutional amendments into American law.
- 1869 — The short-lived Republic of Ezo was declared in northern Japan, marking the fledgling nation's earliest attempt to establish a democratic government.
- 1893 — Antonín Dvořák's celebrated <em>New World Symphony</em> received its first public hearing at a Carnegie Hall afternoon rehearsal in New York City.
- 1903 — Italian American street vendor Italo Marchiony secured a U.S. patent for a machine that manufactured ice cream cones, revolutionizing portable desserts.
- 1939 — <em>Gone with the Wind</em>, later the highest inflation-adjusted box-office earner, held its glittering premiere at Loew's Grand Theatre in Atlanta, Georgia.
- 1945 — General Douglas MacArthur issued the Shinto Directive during the occupation of Japan, ordering the dismantling of Shinto as the country's state religion.
- 1965 — NASA's Gemini 6A launched from Florida and, after four orbits, performed the first-ever space rendezvous with the already-orbiting Gemini 7.
- 1970 — The Soviet Venera 7 probe executed the first successful soft landing on another planet, touching down on Venus and transmitting faint signals back to Earth.
- 2001 — The Leaning Tower of Pisa reopened to visitors after an eleven-year, $27 million stabilization effort that deliberately preserved its famous tilt.
Famous Birthdays on December 15
- 37 — Nero, Roman emperor remembered for his erratic reign, the Great Fire of Rome, and his dramatic suicide in 68 AD.
- 1832 — Gustave Eiffel, French engineer whose most iconic achievement, the Eiffel Tower, defined the Parisian skyline for the 1889 World's Fair.
- 1852 — Henri Becquerel, French physicist who discovered natural radioactivity in uranium, earning a Nobel Prize and fundamentally reshaping modern science.
- 1859 — L. L. Zamenhof, Polish ophthalmologist who invented Esperanto, a constructed international language dedicated to fostering peace across cultures.
- 1907 — Oscar Niemeyer, Visionary Brazilian architect who shaped the modernist skyline of Brasília and co-designed the United Nations Headquarters.
- 1923 — Freeman Dyson, British American theoretical physicist and mathematician celebrated for his bold ideas in quantum electrodynamics and speculative futurism.
- 1933 — Tim Conway, Beloved American comedian and actor whose improvisational brilliance on <em>The Carol Burnett Show</em> made him a television legend.
- 1949 — Don Johnson, American actor who defined 1980s cool as Sonny Crockett on the iconic television series <em>Miami Vice</em>.