Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or ...

April showers aren't the only thing the fourth month of the calendar year brings. In fact, there are a variety of April holidays to celebrate all month long, including April Fools' Day, Easter, Arbor ...

More than one billion people participate in Earth Day, making it the largest civic observance in the world. This year, make sure you join in on the action. Celebrated annually on April 22, Earth Day ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...