Feb. 29 is more than just an extra day we have once every four years. There is some science behind it. Here's how leap days came to be.

Thank the Romans for that oddity. Before the Gregorian calendar used today, Roman King Numa Pompilius (715-673 BC) set about creating a way to sync the months with the lunar cycle. Doing that ...

Even our calendar ... months of the year are named after Roman words - including 'June' from the goddess Juno, 'July' from Julius (Caesar) and 'August' from Augustus (Caesar). Ancient Rome has ...