Image by Source from PixabayIn 2009, the US House of Representatives passed a resolution to officially recognize Pi Day. Pi Day is a delightful tribute to the number Π celebrated each year on March 14, or 3.14. Pi is the ratio of the circumference of a circle to its diameter, or approximately 3.14. Because of this, many choose to celebrate by making and eating the circular, flaky, often fruity, sometimes gooey confection, pie!