Sunday, 21st December 2025

Welcome to Sunday, 21st December! It's World Basketball Day and Winter Solstice (Northern Hemisphere). Explore 37 historical events, birthdays, deaths, and milestones that shaped this day. From remarkable moments in local and world history to the people who left their mark — find out what makes today special. Tonight's moon is in its full moon phase, and the zodiac sign of the day is Sagittarius. If you're curious about the history of a day — this page brings together everything worth knowing about this Sunday, 21st December.

Sunday, 21st December 2025 marks the winter solstice in the Northern Hemisphere, a date that has witnessed significant historical moments across centuries. In 1988, the world’s heaviest aircraft, the Antonov An-225 Mriya, made its inaugural flight, representing a remarkable achievement in aviation engineering. That same year also saw tragedy strike when a bomb detonated aboard Pan Am Flight 103 over Lockerbie, Scotland, resulting in 270 deaths and prompting major changes to aviation security protocols. More recently, in 2018, operatives of the British Special Boat Service boarded the container ship Grande Tema in the Thames Estuary to detain four stowaways who had threatened the crew, demonstrating the ongoing challenges of maritime security in European waters. The date also recalls significant geopolitical shifts, including the 1995 Israeli troop withdrawal from Bethlehem in accordance with the Oslo II Accord, marking a pivotal moment in Israeli-Palestinian relations.

Emma Goldman, the anarchist political activist and feminist, was deported from the United States to Russia on this date in 1919 after serving two years in prison for encouraging resistance to military conscription. Her deportation represented a defining moment in American civil liberties history and reflected the political tensions of the post-First World War era. Throughout history, this date has consistently marked moments of consequence, whether in science, politics or international relations.

On 21st December 2025, the location experiences the full moon phase, providing clear visibility throughout the night. The date falls under the Sagittarius zodiac sign, which runs from 22nd November to 21st December. Weather conditions on this date vary depending on geographical location, though the winter solstice typically brings cold temperatures across the Northern Hemisphere. The Thames Estuary, where the Special Boat Service operation occurred, is a significant maritime zone in southeastern England where the River Thames meets the North Sea, serving as a crucial shipping corridor and strategic defence area.

DayAtlas provides detailed information about weather conditions, historical events, and notable births and deaths for any date and location, enabling users to explore the historical significance of any day throughout the year.

Explore everything about today 11th April.

21st December in the Stars – Star Sign Pisces

Today, the zodiac sign Pisces celebrates its birthday.

Personality Profile

Personality Those born on December 21st embody a rare blend of Sagittarian wanderlust and solar charisma. These individuals radiate natural vitality and constantly seek deeper meaning in life. Connected to Master Number 33, they possess a pronounced drive to inspire and teach others.

Strengths & Weaknesses Their strengths lie in optimism, intellectual brilliance, and infectious enthusiasm. They think generously and act directly. However, impatience and a tendency toward non-commitment can strain relationships, and their willfulness sometimes leads to rash decisions.

Love December 21st natives cherish freedom yet crave deeper emotional connections. Partners should respect their independence and value their philosophical discussions. Loyalty develops through mutual respect and shared intellectual adventures.

Caree & Finance These people thrive in roles requiring knowledge transmission, creative leadership, or exploration. Teaching, writing, travel, and innovative projects appeal to them. Financially generous, they should plan more consciously and curb excessive risk-taking.

Health December 21st natives need physical activity and mental stimulation for optimal wellbeing. Outdoor sports and adventures strengthen their vitality. They should monitor tendencies toward overextension and ensure adequate rest, especially during intense mental work.

That night, the moon was in its full moon phase.

Chinese year of the Snake (Wood).

Fun Facts About 21st December

Name Days in Your Language: Estella, Estelle, Ester, Esther, Star, Stella, Van, Vance, Vanesa, Vaness, Vanna

Someone born on this day would be just 111 days old today — roughly 2,666 hours, 160,010 minutes, or 9,600,637 seconds spent on Earth so far.

It's the 355. day of the year.

There are 10 days still to come.

We’re currently in Week 51 — the year marches on.

Famous Birthdays on 21st December

  • Cooper Flagg, American basketball player (2006)
  • Clara Tauson, Danish tennis player (2002)
  • Madelyn Cline, American actress and model (1997)
  • Charlie McAvoy, American ice hockey player (1997)
  • Ben Chilwell, English footballer (1996)
  • Kaitlyn Dever, American actress (1996)
  • Luke Brooks, Australian rugby league player (1994)
  • Ha Ha Clinton-Dix, American football player (1992)
  • Jamie Oleksiak, Canadian ice hockey player (1992)
  • Nic Maddinson, Australian cricketer (1991)

Lives Remembered on 21st December

  • Michelle Botes, South African actress (born 1962) (2024)
  • Art Evans, American actor (born 1942) (2024)
  • Andrew Clennel Palmer, British engineer (born 1938) (2019)
  • Bruce McCandless II, US astronaut who conducted the first untethered spacewalk (born 1937) (2017)
  • Udo Jürgens, Austrian-Swiss singer-songwriter and pianist (born 1934) (2014)
  • Sitor Situmorang, Indonesian poet and author (born 1923) (2014)
  • Billie Whitelaw, English actress (born 1932) (2014)
  • Edgar Bronfman Sr., Canadian-American businessman and philanthropist (born 1929) (2013)
  • John Eisenhower, American historian, general, and diplomat, 45th United States Ambassador to Belgium (born 1922) (2013)
  • Enzo Bearzot, Italian footballer and manager (born 1927) (2010)

Celebrations & Special Days Worldwide on 21st December

  • Armed Forces Day (Philippines)
  • Christian feast day: O Oriens
  • Christian feast day: Peter Canisius
  • Christian feast day: Thomas the Apostle
  • Christian feast day: December 21 (Eastern Orthodox liturgics)
  • Forefathers' Day (Plymouth, Massachusetts)
  • São Tomé Day (São Tomé and Príncipe)

What Happened on 21st December?

  • Fourteen people are killed and 25 others injured during a mass shooting at Charles University in Prague, Czech Republic. (2023)
  • A great conjunction of Jupiter and Saturn occurs, with the two planets separated in the sky by 0.1 degrees. This is the closest conjunction between the two planets since 1623. (2020)
  • 2012 phenomenon: Festivities are held in parts of Mesoamerica to commemorate the conclusion of b'ak'tun 13, a roughly 5,126-year-long cycle in the Mesoamerican Long Count Calendar whose passing many New Age spiritualists had earlier held to portend a variety of cataclysmic or transformative events. (2012)
  • Iraq War: A suicide bomber kills 22 at the forward operating base next to the main U.S. military airfield at Mosul, Iraq, the single deadliest suicide attack on American soldiers in Iraq. (2004)
  • The Spanish Civil Guard intercepts a van loaded with 950 kg of explosives that ETA intended to use to blow up Torre Picasso in Madrid, Spain. (1999)
  • Cubana de Aviación Flight 1216 overshoots the runway at La Aurora International Airport, killing 18. (1999)
  • The city of Bethlehem passes from Israeli to Palestinian control. (1995)
  • A Dutch DC-10, flight Martinair MP 495, crashes at Faro Airport, Portugal, killing 56. (1992)
  • Dissolution of the Soviet Union: The leaders of 11 now effectively autonomous Soviet republics sign the Alma-Ata Protocol establishing the Commonwealth of Independent States in place of the collapsing Soviet Union. (1991)
  • A bomb explodes on board Pan Am Flight 103 over Lockerbie, Dumfries and Galloway, Scotland, killing 270. This is to date the deadliest air disaster to occur on British soil. (1988)