September, 2025 Calendar with holidays, observances and special days

Krabbe disease also known as globoid cell leukodystrophy or galactosylceramide lipidosis is a rare, often fatal degenerative disorder that affects the myelin sheath of th..→

Labor Day is a federal U.S. holiday which commemorates the contributions of American labor movements to the prosperity and well-being of the country. It is celebrated ann..→

Sickle Cell Anemia Awareness Month; Leukemia, Lymphoma, and Myeloma Awareness Month; Mitochondrial Disease Awareness Month; Brain Aneurysm Awareness Month; Ohio Preparedn..→

State Representative John Carey (R-Wellston) has announced the passage of House Bill 207 (2011), which designates the week in which Labor Day occurs as Ohio Coal Miners W..→

The Japanese Instrument of Surrender was the written agreement that formalized the surrender of the Empire of Japan, marking the end of World War II. It was signed by rep..→

Poverty persists in all countries of the world, regardless of their economic, social and cultural situation, particularly in developing countries. In recognition of the ..→

What better way to kick off the new season than to clean up the city you live in? Carl Garner Federal Lands Cleanup Day is a day observed in the United States to encoura..→

The Lithopolis Honeyfest is a non-profit event with a mission to raise awareness of the importance of the honey bee on crop pollination, to increase the consumption of ho..→

National Grandparents Day is rooted in the innovative work of two committed and passionate pioneers: Jacob Reingold and Marian McQuade. During the 1961 White House Confe..→

Literacy gives people tools with which to improve their livelihoods, participate in community decision-making, gain access to information about health care, and much else..→

In February of 1848, Mexico and the United States signed a treaty which ended the Mexican War and yielded a vast portion of the Southwest, including present day Californi..→

On September 9, 1947 Rear Admiral Grace Murray Hopper, USNR, (1906-1992) who worked with computer pioneer Howard Aiken, found one of the first literal computer bugs: a mo..→

Suicide is the act of intentionally causing one’s own death. Risk factors include mental illness such as depression, bipolar disorder, schizophrenia, personality disorder..→

World Suicide Prevention Day (WSPD), September 10th, is an opportunity for all sectors of the community - the public, charitable organizations, communities, researchers, ..→

The Public Safety Employer-Employee Cooperation Act of 2007, introduced in the 110th Congress,(H.R. 980, S. 2123) proposed to establish minimum standards for state collec..→

In the United States, Patriot Day, observed as the National Day of Service and Remembrance, occurs on September 11 of each year in memory of the 2,977 people killed in th..→

South-South cooperation, as an important element of international cooperation for development, offers viable opportunities for developing countries and countries with eco..→

International Chocolate Day is an observance that occurs in the United States every year on September 13. The U.S. National Confectioners Association has stated that Sept..→

One hundred and fifty years ago, a battle in northern Italy sparked an idea that has since changed the world. On 24 June 1859, Henry Dunant, a young Geneva businessman, w..→

The UN General Assembly, in resolution A/62/7 (2007) encouraged Governments to strengthen national programmes devoted to the promotion and consolidation of democracy, and..→

World Lymphoma Awareness Day (WLAD) is held on September 15 every year and is a day dedicated to raising awareness of lymphoma, an increasingly common form of cancer. It ..→

In 1994, the UN General Assembly proclaimed 16 September the International Day for the Preservation of the Ozone Layer, commemorating the date of the signing, in 1987, of..→

Mildred Fish was born in Milwaukee, Wisconsin, in 1902. In 1926, she married German lawyer Arvid Harnack. They returned to his native Germany in 1930, where she worked as..→

Constitution Day or Citizenship Day is an American federal observance that recognizes the adoption of the United States Constitution and those who have become U.S. citize..→

Representatives of 12 of the 13 original states signed the U.S. Constitution on September 17, 1787. The Constitution, with its 27 amendments, defines the federal system o..→

Wisconsin is a U.S. state located in the north-central United States, in the Midwest and Great Lakes regions. It is bordered by Minnesota to the west, Iowa to the southwe..→

Established to recognize those who suffered or suffer captivity in foreign countries while in active service with the U.S. armed forces. Celebrated on the Friday of the t..→

International Talk Like a Pirate Day - celebrated September 19 is a parodic holiday created in 1995 by John Baur (Ol’ Chumbucket) and Mark Summers (Cap’n Slappy), of Alba..→

Miners Day is one of Frederick’s premier annual community events drawing thousands of people to Downtown Frederick for family-oriented fun and entertainment throughout th..→

German-Americans are the largest self-reported ancestral group in the United States. Correspondingly, there are hundreds of large and small Oktoberfest celebrations held ..→

William James said’ Act as if what you do makes a difference. It does.’ Steve Jewett and his friends have followed the advice and encourage all of us to do it. Do somethi..→

Each year the International Day of Peace is observed around the world on 21 September. The General Assembly has declared this as a day devoted to strengthening the ideals..→

The first American Indian Day was celebrated in May 1916 in New York. In 1990, then President George H. W. Bush signed a joint congressional resolution designating Natio..→

An equinox is an astronomical event in which the plane of Earth’s equator passes through the center of the Sun, which occurs twice each year, around 20 March and 23 Septe..→

Ohio Revised Code - GENERAL PROVISIONS - Chapter 5: STATE INSIGNIA; SEALS; HOLIDAYS: "5.2234 Emancipation day. The twenty-second day of September is designated as ..→

International Week of the Deaf is an initiative of the World Federation of the Deaf (WFD) and it was first launched in 1958 in Rome, Italy. Since then, it is celebrated a..→

A parent is a caretaker of the offspring in their own species. In humans, a parent is the caretaker of a child (where "child" refers to offspring, not necessari..→

The festival of Rosh Hashanah—the name means “Head of the Year”—is observed for two days beginning on 1 Tishrei, the first day of the Jewish year. It is the anniversary o..→

A Car-Free Day encourages motorists to give up their cars for a day. Organized events are held in some cities and countries. September 22 is World Car Free Day. According..→

Bullying is the use of force, threat, or coercion to abuse, intimidate, or aggressively dominate others. The behavior is often repeated and habitual. One essential prereq..→

In 2018, International Maritime Organization (IMO) celebrates 70 years since the Convention establishing the Organization was adopted. The World Maritime Day theme for th..→

Achieving global nuclear disarmament is one of the oldest goals of the United Nations. It was the subject of the General Assembly’s first resolution in 1946. It has been..→

In 1968, Governor Ronald Reagan signed a resolution calling for a holiday called American Indian Day, to be held the Fourth Friday in September. In 1998, the California A..→

World Contraception Day takes place on September 26th every year. The annual worldwide campaign centers around a vision where every pregnancy is wanted. Launched in 2007,..→

When’s Google’s birthday? I’m not sure even we know – we’ve celebrated on September 4th, 7th, 8th, 26th, and, most recently the 27th. Still, while there’re some differi..→

Web safety, or online safety or Internet Safety, is the knowledge of maximizing the user’s personal safety and security risks to private information and property associat..→

Native Americans began receiving special emphasis in 1987 when the National Park began its first "Native American Indian Day" on September 26. Paralleling Ohio’..→

World Tourism Day (WTD) is commemorated each year on 27 September. Its purpose is to foster awareness among the international community of the importance of tourism and ..→

Frances Willard, a teacher and lecturer, grew up in Janesville, Wisconsin. She was influential in the early women’s movement and was president of the Women’s Christian Te..→

Gold Star Mother’s Day is a day for people to recognize and honor those who have lost a son or daughter while serving the United States Armed Forces. It is observed in th..→

World Rabies Day is an international campaign coordinated by the Global Alliance for Rabies Control, a non-profit organization with headquarters in the United States and ..→

World Heart Day was founded in 2000 to inform people around the globe that heart disease and stroke are the world’s leading causes of death, claiming 17.3 million lives e..→

International Translation Day is celebrated every year on 30 September on the feast of St. Jerome, the Bible translator who is considered the patron saint of translators...→