Tuesday
April 21
21 holidays and observances fall on this day.
Tiradentes Day
Tiradentes Day is a Brazilian national holiday held every April 21.
Festival of Ridvan
The Festival of Ridvan is a twelve-day Baha'i celebration beginning annually on April 20 or 21.
World Creativity and Innovation Day
World Creativity and Innovation Day celebrates the essential role of creativity and innovation in achieving sustainable development and addressing global challenges.
World Curlew Day
World Curlew Day, celebrated on April 21st, aims to raise awareness about curlew conservation and the challenges these unique birds face globally.
International Hemp Day
International Hemp Day celebrates the hemp plant's diverse applications and promotes awareness of its environmental and economic benefits.
Battle of San Jacinto (San Jacinto Day)
San Jacinto Day is a Texas state holiday celebrating the 1836 victory for independence on April 21.
National Bulldogs Are Beautiful Day
National Bulldogs Are Beautiful Day is a breed appreciation holiday held every April 21.
National Tea Day
National Tea Day is an annual celebration of tea culture held every April 21.
Big Word Day
Big Word Day is a celebration of complex vocabulary held every April 21.
National Library Workers Day
National Library Workers Day is observed on the Tuesday of National Library Week in April.
National Yellow Bat Day
National Yellow Bat Day honors a specialized Army intelligence unit every April 21.
National Surprise Drug Test Day
National Surprise Drug Test Day is an unofficial safety awareness day held every April 21.
Tuna Rights Day
Tuna Rights Day is an environmental awareness day observed every April 21.
Keep Off the Grass Day
Keep Off the Grass Day is a lawn preservation awareness day held every April 21.
National Kindergarten Day
National Kindergarten Day honors the founder of the kindergarten system every April 21.
Advisor Appreciation Day
Advisor Appreciation Day is a day of gratitude for mentors and counselors held every April 21.
Thank You for Libraries Day
Thank You for Libraries Day is a day of public appreciation held every April 21.
National Chickpea Day
National Chickpea Day is a food awareness holiday observed every April 21.
National Chocolate Covered Cashews Day
National Chocolate Covered Cashews Day is a food holiday held every April 21.
National Pet CBD day
National Pet CBD Day promotes safe hemp-based wellness for animals every April 21.
Rome Foundation Day
Rome Foundation Day is a cultural celebration held every April 21 to mark the city's founding.
Coming up next
National Jelly Bean Day
National Jelly Bean Day is a sweet celebration held every April 22 to enjoy and share these iconic colorful candies.
Earth Day (International Mother Earth Day)
Earth Day is a global event held every April 22 to support environmental protection and sustainable practices.
Global Selfie Earth Day
Global Selfie Earth Day is a digital event held on April 22 where people share photos of themselves in nature.
National Beagle day
National Beagle Day is a celebration held every April 22 to honor the history and friendly nature of the Beagle breed.
April Showers Day
April Showers Day is observed every year on April 22 to celebrate the rain that helps spring flowers grow.
In God We Trust Day
In God We Trust Day is held every April 22 to mark the 1864 law that first placed the motto on U.S. coins.
National I.T. Service Provider Day
National I.T. Service Provider Day is held every April 22 to thank the experts who manage and secure our digital networks.
National Bookmobile Day
National Bookmobile Day celebrates the mobile libraries that provide community outreach services every Wednesday of National Library Week.
Browse the calendar
Fewer
More holidays
Bookmarked