• National Former Prisoner of War Recognition Day in the USA 2026

    United States , United States

    National Former Prisoner of War Recognition Day is observed annually on April 9. This day was introduced to honor American veterans of any wars that returned home after being released from prisons. The date of April 9 was chosen to commemorate the same day in 1942, when United States forces were surrendered by the Imperial...

  • National Siblings Day 2026

    International

    National Siblings Day is a heartfelt celebration of one of the most enduring relationships in life - the bond between brothers and sisters. Whether you grew up in a house full of noise and shared secrets or are reconnecting with a sibling later in life, this day is a reminder to appreciate those unique connections....

  • Day of Silence

    United States , United States

    <![CDATA[The Day of Silence is an annual student-led day of action organised by GLSEN (the Gay, Lesbian and Straight Education Network) to raise awareness about the effects of bullying and harassment on LGBTQ+ students in schools. Observed on the second Friday of April, the Day of Silence falls on Friday, 10 April in 2026. Participants...

  • World Homeopathy Awareness Week 2026

    International

    What is World Homeopathy Awareness Week? World Homeopathy Awareness Week is an annual international event that takes place from 10 April to 16 April each year. Organised by the World Homeopathy Awareness Organisation (WHAO), the week is dedicated to raising public awareness of homeopathy, celebrating its practitioners and sharing the experiences of those who use...

  • National Barbershop Quartet Day

    United States , United States

    Celebrate National Barbershop Quartet Day on April 11 and discover the joy of four-part harmony, rich tradition, and the community spirit of barbershop music.

  • World Parkinson’s Day 2026

    International

    What is World Parkinson's Day? World Parkinson's Day is an international awareness day observed on 11 April every year to raise public understanding of Parkinson's disease, a progressive neurological condition that affects movement, mood and many other aspects of daily life. The day is coordinated by Parkinson's organisations around the world and serves as a...

  • National Pet Day

    United States , United States

    National Pet Day takes place on 11 April each year, celebrating the bond between humans and their animal companions. Founded by animal welfare advocate Colleen Paige in 2006, the day encourages pet adoption and raises awareness about the millions of animals still waiting for permanent homes in shelters across the United States and beyond. What...

  • National Submarine Day

    United States , United States

    National Submarine Day is observed on 11 April each year in the United States, commemorating the date the US Navy purchased its first modern commissioned submarine. On 11 April 1900, the Navy acquired the Holland VI, a vessel designed by Irish-American inventor John Philip Holland, marking the beginning of the submarine era in American naval...

  • National Grilled Cheese Sandwich Day 2026

    United States , United States

    What is National Grilled Cheese Sandwich Day? National Grilled Cheese Sandwich Day is celebrated on 12 April each year, honouring one of the most popular comfort foods in the world. The day is dedicated to the simple yet satisfying combination of melted cheese between two slices of toasted bread -- a meal that has been...

  • International Day of Human Space Flight 2026

    International

    The International Day of Human Space Flight is observed every year on 12 April, marking the anniversary of Yuri Gagarin's groundbreaking orbital flight in 1961. Declared by the United Nations General Assembly in 2011 through resolution A/RES/65/271, the day celebrates the dawn of the space era and reaffirms the importance of space science and technology...

  • Thomas Jefferson’s Birthday 2026

    United States , United States

    April 13 is Thomas Jefferson's Birthday, the third President of the USA. He is considered as an American Founding Father and the author of the Declaration of Independence. Thomas Jefferson was born on April 13, 1743. He had a prominent career as a politician. He was a spokesman for democracy, represented Virginia in the Continental...

  • National Scrabble Day 2026

    International

    National Scrabble Day takes place on 13 April each year, marking the birthday of Alfred Mosher Butts, the American architect who invented one of the world's most popular board games. The day celebrates the joy of wordplay, the thrill of triple-word scores, and the enduring appeal of a game that has sold over 150 million...

  • Oral, Head and Neck Cancer Awareness Week

    United States , United States

    <![CDATA[Oral, Head and Neck Cancer Awareness Week takes place from 13 to 17 April 2026 across the United States, coinciding with Head and Neck Cancer Awareness Month. Organised by the Head and Neck Cancer Foundation (HNCF), the week centres on free walk-in oral cancer screening exams offered at dental and oral surgery offices nationwide, promoting...

  • Pan American Day 2026

    United States , United States

    April 14 is Pan American Day, a holiday that commemorates the First International Conference of American States. Pan American Day originated in a resolution adopted by the Governing Board of the Pan American Union on May 7, 1930. The very first Pan American Day was observed on April 14, 1931 and it was introduced by...

  • National Gardening Day 2026

    United States , United States

    National Gardening Day takes place on 14 April each year, encouraging gardeners of all abilities to get outdoors, plant something new, and share their love of growing. Founded in 2018 by Cool Springs Press, this annual celebration falls perfectly in mid-spring, when soil temperatures are rising and the growing season is well under way across...

  • World Chagas Disease Day

    International

    <![CDATA[World Chagas Disease Day is observed on 14 April each year, raising global awareness about Chagas disease, a neglected tropical disease caused by the parasite Trypanosoma cruzi. Established by the World Health Organization (WHO) in 2020, the day highlights the urgent need for early diagnosis, treatment, and prevention of a disease that affects an estimated...

  • National Dolphin Day

    International

    National Dolphin Day is observed on 14 April each year, raising awareness about the conservation and welfare of dolphins worldwide. Created by the Earth Island Institute in 1990, the day was originally established as part of a campaign to protect dolphins from harmful tuna fishing practices in the Pacific Ocean. Today, it serves as a...

  • International Microvolunteering Day 2026

    International

    You would be amazed at how much your little effort and mine can go a long way in making the world a better place. That is the whole essence of micro-volunteering and hence the micro-volunteering day. Held on the 15th of April, the day is meant to showcase the power of coming together with the...

  • World Voice Day 2026

    WVD (World Voice Day) is a global annual event held on 16 April dedicated to the phenomenon of voice celebration. The aim is to show the enormous value of the voice in the people's daily lives. Voice is an important aspect of healthy and effective communication. The WVD brings worldwide awareness of the necessity of...

  • National Early Years Teacher Day 2026

    United Kingdom , United Kingdom

    What is National Early Years Teacher Day? National Early Years Teacher Day is a celebration of the invaluable role that Early Years Teachers play in classrooms and settings. Best Practice Network created National Early Years Teacher Day after realising something was amiss. The calendar was full of awareness days for a variety of causes, but...

  • World Haemophilia Day 2026

    International

    World Haemophilia Day is an international observance dedicated to raising awareness about haemophilia and other bleeding disorders. The day aims to increase understanding of these conditions, promote access to care and treatment, and highlight the importance of early diagnosis. It is a time to support those living with haemophilia and their families, and to advocate...