Why do we have leap years? The science behind February 29th

Why do we have leap years? The science behind February 29th

Why do we have leap years? The science behind February 29th

rte.ie - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from rte.ie Daily Mail and Mail on Sunday newspapers.

Related Keywords

Greece , Newgrange , Meath , Ireland , Rome , Lazio , Italy , Greek , Pope Gregory , Daniel Brown , Julius Caesar , Johnb Keane , Reference Systems Service , Nottingham Trent University , International Earth Rotation , Nottingham Trent , Leap Year , Campus Martius , Reference Systems ,