Holidays Calendar for September 13, 2025
Programmers' Day is an international professional day celebrated on the 256th day of the year. It falls on September 13 during common years and September 12 during leap years. The holiday is observed in many countries, but Russia is the only country where it is recognized officially.
World Sepsis Day is an international campaign held annually on September 13. Organized by the Global Sepsis Alliance, it was launched in 2012 to unite people from all over the world in the fight against sepsis.
World First Aid Day is a global observance held on the second Saturday in September. It was instituted by the International Federation of Red Cross and Red Crescent Societies (IFRC) in 2000 and has been celebrated each year ever since.
Every year engineers of Mauritius celebrate Engineer's Day on September 13. This professional holiday is usually accompanied by Engineer's Dinner.
Land Development Specialist’s Day is one of the many official professional holidays observed in Tajikistan. It has been celebrated every September 13 since 2011, when it was added to the law “On Holidays”.
Day of Ukrainian Cinema is the professional holiday of all Ukrainian film industry employees, from actors and directors to support staff. It is celebrated on the second Saturday in September. The holiday was established by President of Ukraine Leonid Kuchma in 1996.
Day of Physical Culture and Sport is a Ukrainian holiday that has been observed on the second Saturday in September since 1994. It is celebrated by professional athletes, coaches, PE teachers, amateur sportsmen, and sports enthusiasts throughout the country.
Day of Energy Industry Workers is an official professional holiday in Turkmenistan celebrated on the second Saturday in September. It was established in 2003 as Day of the Employees of the Oil, Gas, Energy and Geological Industries, but its name was shortened for the sake of convenience.
Ukrainian Borscht Day is celebrated annually on the second Saturday of September in honor of one of the most iconic dishes of Ukrainian cuisine. Even though it has not been designated as an official holiday in Ukraine yet, it is widely observed in Ukraine and by Ukrainians abroad.
Many people around the world enjoy books by Roald Dahl, a British novelist, poet and short story writer. He has written many famous children's books, that were adopted to films. His birthday on September 13 mark celebration of Roald Dahl Day.
Día de los Niños Héroes (Boy Heroes Day) is a very important memorial day in Mexico. This day falls on September 13 and the Mexicans honor six teenage cadets, who died defending Chapultepec Castle from invading U.S. forces.
Battle of Pulang Lupa Day (Araw ng Labanan sa Pulang Lupa) is a special non-working holiday in the Philippine province of Marinduque. It is celebrated on September 13 to commemorate one of the most glorious Filipino victories during the Philippine-American War.
On September 13, the National Peanut Day is celebrated. Despite the name, the peanut isn’t really a nut in a botanical sense.
International Chocolate Day is an unofficial holiday, dedicated to the sweetest and tastiest dainty in the world – chocolate. This day is celebrated on September 13, since it's birthday of Milton S. Hershey, an American confectioner and founder of worldwide known company The Hershey Chocolate Company.
Ramdev Jayanti and Teja Dashmi are two traditional holidays that are celebrated in the Indian state of Rajasthan on the tenth day of the Hindu month of Bhadrapada, falling either in August or September in the Gregorian calendar.
National Celiac Disease Awareness Day is an annual observance held in the United States on September 13 every year. It aims to raise awareness of an autoimmune disorder caused by a reaction to gluten that affects the small intestine.
On September 13, Brazilians celebrate National Cachaça Day (Dia Nacional da Cachaça). It is dedicated to a distilled spirit that is considered the national beverage of Brazil, just like champagne in France or pisco in Peru.
Festivals on September 13, 2025
- Truckfest in Knutsford, United Kingdom
- International Motor Show Germany (IAA Mobility / Transportation) in Munich, Germany
- Warsteiner Internationale Montgolfiade in Warstein, Germany
This Day in History
- 2022 Died: Jean-Luc Godard, French and Swiss film director, screenwriter, and film critic. He rose to prominence as a pioneer of the French New Wave film movement of the 1960s.
- 2009 Died: Paul Burke, American actor, best remembered for his lead roles in the ABC television series Naked City and 12 O'Clock High.
- 2008 Delhi, the capital of India, was hit by a series of bomb blasts. At least 30 people were killed and over 100 injured. The responsibility for the blasts was taken by the Islamist Indian Mujahideen terrorist group.
- 2006 Fascinated by the 9/11 terrorist attacks on the USA and the 1999 Columbine High School massacre in Colorado, Kimveer Gill started shooting at Dawson College in Montreal, Quebec, Canada.
- 2004 Died: Luis E. Miramontes, Mexican chemist, remembered for his contributions to organic chemistry and co-invention of the progestin norethindrone that was used in one of the first oral contraceptives.
- 2002 Died: George Stanley, Canadian author, soldier, historian at Mount Allison University, public servant, and designer of the Canadian Flag.
- 2001 Civilian aircraft traffic resumed in the United States after the September 11 attacks.
- 1996 Born: Lili Reinhart, American actress. She is known for portraying Betty Cooper on the teen drama series Riverdale and Annabelle in the black comedy crime drama film Hustlers.
- 1996 Died: Tupac Shakur, also known by his stage name 2Pac, American rapper, songwriter and actor, one of the best-selling music artists of all time. He was killed in a drive-by shooting in Las Vegas.
- 1987 A radioactive object was stolen from an abandoned hospital in Goiânia, Brazil. The object contaminated many people during the following weeks and caused some to die from radiation poisoning.
- 1985 Super Mario Bros. was released in Japan for the Nintendo Entertainment System. The game enjoyed a great success that eventually led to a whole series of platforming games.
- 1961 Born: Dave Mustaine, American musician best known as the co-founder, frontman, primary songwriter and sole consistent member of the thrash metal band Megadeth.
- 1956 The IBM 305 RAMAC, the first commercial computer to use a moving-head hard disk drive storage, was publicly introduced. It also became the last vacuum tube computer that IBM built.
- 1953 Died: Mary Brewster Hazelton, American portrait painter who became the first woman to win an award open to both men and women in the US when she won the Hallgarten Prize from the National Academy of Design.
- 1949 Died: August Krogh, Danish physiologist who was awarded the 1920 Nobel Prize in Physiology or Medicine for the discovery of the mechanism of regulation of the capillaries in skeletal muscle.
- 1944 Born: Jacqueline Bisset, British actress who received the France's highest honor, the Légion d'honneur. She first came to prominence with roles in The Detective, Bullitt, and The Sweet Ride.
- 1941 Died: Elias Disney, Irish-Canadian-American construction worker and entrepreneur. He was best known as the father of Roy and Walt Disney, co-founders of The Walt Disney Company.
- 1940 Born: Óscar Arias, Costa Rican activist and Nobel Peace Prize laureate. He was President of Costa Rica from 1986 to 1990 and from 2006 to 2010.
- 1937 Born: Don Bluth, American filmmaker, animator, and author. He is best known for directing the animated films An American Tail, The Land Before Time, All Dogs Go to Heaven, and Anastasia.
- 1923 Spanish military officer Miguel Primo de Rivera took over the administration of Spain after a military coup. He set up a dictatorship that lasted until his resignation in January 1930.
- 1922 Born: Yma Sumac, Peruvian-born American-naturalised vocalist, composer, producer, actress, and model. She gained international success for her extreme vocal range that was well over five octaves.
- 1922 The burning of Smyrna commenced in the port city of Smyrna (modern İzmir, Turkey) four days after the Turkish military captured the city, effectively ending the Greco-Turkish War.
- 1921 The Battle of Sakarya, one of the important engagements between Greece and Turkey during the Greco-Turkish War and Turkish War of Independence, ended in a Turkish victory.
- 1912 Died: Joseph Furphy, Australian author and poet who is widely regarded as the "Father of the Australian novel". He mostly wrote under the pen name Tom Collins.
- 1898 Hannibal Goodwin obtained a patent for celluloid photographic film, moving forward the progress of the art of photography.
- 1894 Born: Julian Tuwim, Polish poet of Jewish descent. He was a major figure in Polish literature, admired also for his contribution to children's literature.
- 1894 Born: J. B. Priestley, English novelist, playwright, screenwriter, broadcaster and social commentator. His best known works include The Good Companions, Angel Pavement, and more.
- 1887 Born: Leopold Ružička, Croatian-Swiss scientist and joint winner of the 1939 Nobel Prize in Chemistry "for his work on polymethylenes and higher terpenes".
- 1872 Died: Ludwig Feuerbach, German philosopher and anthropologist. His book The Essence of Christianity strongly influenced later thinkers, including Charles Darwin and Sigmund Freud.
- 1862 Union soldiers found a lost copy of Robert E. Lee's battle plans in a field outside Frederick, Maryland. This information significantly affected the outcome of the Maryland Campaign during the Civil War.
- 1857 Born: Milton S. Hershey, American chocolatier, businessman, and philanthropist. He founded The Hershey Company that is one of the largest chocolate manufacturers in the world.
- 1766 Born: Samuel Wilson, American meat packer whose name is purportedly the source of the personification of the United States known as "Uncle Sam".
- 1592 Died: Michel de Montaigne, French philosopher widely regarded as one of the most significant philosophers of the French Renaissance. He is known for popularizing the essay as a literary genre.