The first brand to introduce the leap year indicator on a wrist watch. Here's a quick run through featuring some special ...

To correct this, Pope Gregory XIII established the Gregorian calendar system in 1582, which removed Leap Days from most years ending in 00 to reduce the drift. To remove the effect of the drift ...

Artist Monster Chetwynd leads a delightfully bonkers exploration of the Leap Day. It takes 365 ¼ days for the earth to rotate around the sun. But the calendar year is 365 days. So, to synchronize ...