April 9: Holidays, Historical Events, Famous Birthdays & Zodiac Sign

Quick Facts for April 9

• Zodiac sign: Aries
• Day of year: 99

About April 9

April 9 serves as a profound crossroads in history, marking both the end of devastating conflicts and the dawn of human exploration. While the surrender of the Army of Northern Virginia in 1865 signaled a monumental shift in the United States, nearly a century later, the world looked toward the stars as NASA introduced the 'Mercury Seven'—the first group of American astronauts chosen to pioneer space travel.

The day also resonates with cultural courage and resilience. In 1939, Marian Anderson broke racial barriers by performing at the Lincoln Memorial after being denied entry to Constitution Hall. From the legislative shifts of the Treaty of Lodi to the high-stakes atmosphere of the Cold War, April 9 continues to remind us of the human spirit's ability to navigate through political upheaval and social transformation.

Holidays & Observances on April 9

• Baghdad Liberation Day (Iraqi Kurdistan)
• Constitution Day (Kosovo)
• Day of National Unity (Georgia)
• Day of the Finnish Language (Finland)
• Day of Valor or Araw ng Kagitingan (Philippines)
• Feast of the Second Day of the Writing of the Book of the Law (Thelema)
• Martyr's Day (Tunisia)
• National Former Prisoner of War Recognition Day (United States)

Fun & National Days on April 9

• International ASMR Day — Find a quiet space and enjoy some soothing sensory sounds to relax.
• National Chinese Almond Cookie Day — Treat yourself to a sweet, crunchy almond cookie today!
• National Gin and Tonic Day — Mix up a refreshing, ice-cold gin and tonic to celebrate.
• National Cherish an Antique Day — Take a moment to appreciate a treasured old heirloom in your home.
• AANHPI Women's Equal Pay Day
• Appomattox Day
• Jenkins' Ear Day
• National Alcohol Screening Day
• National Chicken Little Awareness Day

On This Day in History

• 193 — The army in Illyricum proclaimed the prominent soldier Septimius Severus as their new emperor.
• 1241 — Mongol military forces secured a significant victory against combined Polish and German armies at the Battle of Liegnitz.
• 1454 — The Treaty of Lodi was signed, fostering a lasting balance of power among northern Italian city-states.
• 1609 — Spain and the Dutch Republic entered a period of peace through the signing of the Treaty of Antwerp.
• 1682 — French explorer Robert Cavelier de La Salle reached the mouth of the Mississippi River, claiming Louisiana for France.
• 1865 — General Robert E. Lee surrendered his troops to Ulysses S. Grant, effectively concluding the American Civil War.
• 1917 — During World War I, the Canadian Corps launched a major offensive on Vimy Ridge at the Battle of Arras.
• 1939 — Singer Marian Anderson delivered a historic concert at the Lincoln Memorial following her exclusion from Constitution Hall.
• 1940 — Germany launched Operation Weserübung, beginning its invasion of both Norway and Denmark during World War II.
• 1959 — NASA officially announced the selection of the Mercury Seven, the first group of American astronauts.
• 1967 — The aviation world celebrated the first successful maiden flight of the Boeing 737 aircraft.
• 2003 — American forces successfully captured the city of Baghdad during the ongoing Iraq War.

Famous Birthdays on April 9

• 1806 — Isambard Kingdom Brunel, The legendary English engineer famous for designing the Clifton Suspension Bridge.
• 1821 — Charles Baudelaire, An influential French poet and critic known for his profound literary impact.
• 1830 — Eadweard Muybridge, A pioneering English photographer who helped establish the foundations of cinematography.
• 1898 — Paul Robeson, A world-renowned American singer, actor, and powerful activist.
• 1918 — Jørn Utzon, The Danish architect celebrated for designing the iconic Sydney Opera House.
• 1999 — Lil Nas X, A contemporary American rapper and singer who has redefined modern music.