Every four years, an extra day fuels fantasies. 2100, in this regard, will also be a special year.
The year 2100 will therefore not be a leap year and the month of February will not have a 29th day. The word “leap year” goes back further. It is borrowed from the Latin “bisextilis”, dating from the 4th century and itself coming from “ bisextus’. The word means “twice sixth”.