The Chinese, Hebrew, Hindu and Iranian calendars also account for the extra time the earth takes to rotate around the sun but not in the same way the Gregorian calendar does. For example, in the Hebrew calendar a 13th lunar month is added seven times every 19 years to the 12 lunar months in its normal years to keep its calendar year from drifting through the seasons too rapidly.
February 29 is also the day attached men quake in their boots waiting to see if their fairer half will turn the tables and propose. According to traditional folklore any man who refuses a proposal owes his lady a silk gown and a kiss. Hardly compensation by today’s standards if you ask me.