Leap Years, Leap Seconds, and a Brief History of the Western Calendar

Happy February 29, everybody! Have you ever wondered why we add an extra day to the calendar every four years? As it turns out, the solar year is a little longer than the modern 365-day calendar year, which has necessitated numerous modifications to the calendar over the years to try to keep everything moving smoothly.  Read More Leap Years, Leap Seconds, and a Brief History of the Western Calendar