Pi Day is a nationally recognized date celebrating mathematics and the history of the mathematical term pi. Pi Day is observed and celebrated in many fun ways worldwide. More »

Some Pi Day activities for high school students include discussing the history of pi, measuring various circular objects, writing pi poems and holding a pi digit memorization contest. Other possible activities include go... More »

Pi Day T-shirts are designed to celebrate Pi Day, which occurs on March 14 each year. Pi Day is a celebration of the mathematical concept of pi. More »

Some Pi Day activities for high school students include discussing the history of pi, measuring various circular objects, writing pi poems and holding a pi digit memorization contest. Other possible activities include go... More »

Father's Day was first celebrated in Washington state on July 19, 1910, after Sonora Smart Dodd lobbied local businesses, organizations and politicians to create a day to honor fathers. It became a federal holiday in the... More »

A military appreciation day is any special event that celebrates or expresses appreciation for the military. There is no federal holiday listed as "Military Appreciation Day," but many venues or businesses hold their own... More »

AboutTravelingTheWorld.com states that there is no found origin of National Lazy Day, and no other known websites list history of the day either. However, it is known to be celebrated most years on August 10. More »