Google marked the Leap year. Google has done a great job with the Doodle. Give your rating for this beautiful Google Doodle Logo.
Why is there a leap day?
A leap year (also known as an intercalary year or a bissextile year) is a year containing one additional day (or, in the case of lunisolar calendars, a month) added to keep the calendar year synchronized with the astronomical or seasonal year. Because seasons and astronomical events do not repeat in a whole number of days, calendars that have the same number of days in each year drift over time with respect to the event that the year is supposed to track.