Battle of San Jacinto (San Jacinto Day)
Battle of San Jacinto (San Jacinto Day) is observed annually on April 21. This state holiday in Texas commemorates the final and decisive battle of the Texas Revolution, where the…
Advisor Appreciation Day
Advisor Appreciation Day is observed annually on April 21. This holiday is dedicated to recognizing the professional guidance and personal support provided by advisors across various sectors, including education, finance,…
Tiradentes Day
Tiradentes Day is observed annually on April 21. This Brazilian national holiday commemorates the life and execution of Joaquim José da Silva Xavier, a revolutionary leader who sought independence from…
National Chocolate Covered Cashews Day
National Chocolate Covered Cashews Day is observed annually on April 21. This food holiday encourages snack enthusiasts to enjoy the specific pairing of buttery cashew nuts and smooth chocolate coating….
Big Word Day
Big Word Day is observed annually on April 21. This holiday encourages people to expand their vocabularies by moving beyond common, everyday language to use more complex and precise terminology….
National Library Workers Day
National Library Workers Day is observed on the Tuesday of National Library Week. In 2026, it falls on April 21. This day is dedicated to recognizing the hard work, dedication,…
International Astronomy Day (Spring)
International Astronomy Day (Spring Astronomy Day) is observed on a Saturday between mid-April and mid-May on or near the first quarter Moon. In 2026, it falls on April 25. This…
Tuna Rights Day
Tuna Rights Day is observed annually on April 21. This day focuses on the environmental and ethical issues surrounding the global tuna industry, specifically emphasizing the need for sustainable fishing…
Thank You for Libraries Day
Thank You for Libraries Day is observed annually on April 21. This holiday serves as a dedicated time for patrons and communities to express their gratitude for the resources, sanctuary,…
Rome Foundation Day
Rome Foundation Day, also known as Natale di Roma, is observed annually on April 21. This secular holiday celebrates the legendary founding of the Eternal City in 753 BC by…