Universal Day of Culture
Universal Day of Culture is an international observance held annually on April 15. This significant date commemorates the signing of the Roerich Pact in 1935, a pioneering international treaty dedicated…
Titanic Remembrance Day
Titanic Remembrance Day is observed annually on April 15. This day marks the anniversary of the sinking of the RMS Titanic in 1912, one of the deadliest maritime disasters in…
That Sucks Day
That Sucks Day is an unofficial American holiday observed annually on April 15. This quirky observance was created to acknowledge the historically unfortunate events associated with this specific date, most…
Take A Wild Guess Day
Take A Wild Guess Day is an unofficial American holiday celebrated annually on April 15. This day encourages people to abandon their usual reliance on hard data and logic in…
Purple Up Day
Purple Up Day is a national day of appreciation for military children observed annually on April 15. This day is the centerpiece of the Month of the Military Child, providing…
One Boston Day
One Boston Day is a local and regional observance held annually on April 15. This day was established to honor the victims, survivors, and first responders of the 2013 Boston…
National Rubber Eraser Day
National Rubber Eraser Day is observed annually on April 15. This day commemorates the invention and evolution of the rubber eraser, a tool that revolutionized the way people write, draw,…
National Laundry Day
National Laundry Day is celebrated annually on April 15. In 2026, it falls on April 15. This day recognizes the history, technology, and essential labor involved in the everyday task…
National Griper’s Day
National Griper’s Day is an unofficial holiday observed annually on April 15. This day encourages people to voice their minor annoyances, pet peeves, and frustrations in a constructive way. Coinciding…
National Glazed Spiral Ham Day
National Glazed Spiral Ham Day is observed annually on April 15. This culinary holiday celebrates a specific method of preparation that transformed a traditional bone-in ham into a convenient, uniform,…