February 29

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February 29 is known as a leap day (or "leap year day"), which is periodically added as the last day of the month to the Julian and Gregorian calendars, as an intercalary date, to create leap years. Its main function is to keep the calendars aligned with the Earth's seasons, as the planet orbits the sun.

In the older Julian calendar, leap days are added to every year that is evenly divisible by four. However, this causes the calendar to slowly become misaligned with the Earth's seasons, by about 3 days every 400 years.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> (The Julian calendar continues to be used in some places as the basis for their liturgical calendar).

The Gregorian calendar is the standard civil calendar used in most of the world, and is a slight modification of the Julian calendar. In this calendar, a centennial year does not have a February 29 (despite being evenly divisible by 4) unless it is also evenly divisible by 400. Thus, in contrast to the Julian calendar, the years 1700, 1800 and 1900 did not have leap year days but both calendars had a February 29 in the years 1600 and 2000.

The convention of adding a "February 29" to be the leap day was not widely used before the 15th century. Instead, beginning with Julius Caesar's calendar edict of 45 BC until the 16th century (formally), February 24 was doubledTemplate:Snd two successive days had the same date.<ref>Template:Cite book</ref>

February 29 is the 60th day of a leap year for both the Julian and Gregorian calendars, and 306 days remain until the end of the leap year. It is also the last day of meteorological winter in the Northern Hemisphere and the last day of meteorological summer in the Southern Hemisphere in leap years.

Events

Pre-1600

1601–1900

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1901–present

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Births

Pre-1600

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1601–1900

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  • 1896 – William A. Wellman, American actor, director, producer and screenwriter (died 1975)<ref>{{#invoke:citation/CS1|citation

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1901–present

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  • 1908Balthus, French-Swiss painter and illustrator (died 2001)<ref>Template:Cite book</ref>
  • 1908 – Dee Brown, American historian and author (died 2002)<ref>{{#invoke:citation/CS1|citation

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  • 1928 – Vance Haynes, American archaeologist, geologist and author<ref>{{#invoke:citation/CS1|citation

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  • 1932 – Gavin Stevens, Australian cricketer<ref>{{#invoke:citation/CS1|citation

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  • 1944Dennis Farina, American police officer and actor (died 2013)<ref>{{#invoke:citation/CS1|citation

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  • 1948 – Sonny M'Pokomandji, Central African basketball player and politician, Minister of Equipment and Transport (2003–2005)<ref>{{#invoke:citation/CS1|citation

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  • 1960Khaled, Algerian singer-songwriter<ref>Template:Cite book</ref>
  • 1960 – Richard Ramirez, American serial killer and sex offender (died 2013)<ref name="Encyclopedia Britannica 2017 v666">{{#invoke:citation/CS1|citation

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  • 1960 – Tony Robbins, American author and motivational activist<ref>{{#invoke:citation/CS1|citation

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  • 1964 – Lyndon Byers, Canadian ice hockey player and radio host (died 2025)<ref>{{#invoke:citation/CS1|citation

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  • 1968 – Pete Fenson, American curler<ref>{{#invoke:citation/CS1|citation

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  • 1976 – Katalin Kovács, Hungarian sprint kayaker<ref>{{#invoke:citation/CS1|citation

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  • 1980 – Simon Gagné, Canadian ice hockey player<ref>{{#invoke:citation/CS1|citation

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  • 1980 – Rubén Plaza, Spanish cyclist<ref>{{#invoke:citation/CS1|citation

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  • 1980 – Clinton Toopi, New Zealand rugby league player<ref>{{#invoke:citation/CS1|citation

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  • 1980 – Taylor Twellman, American soccer player and sportscaster<ref>{{#invoke:citation/CS1|citation

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  • 1988 – Hannah Mills, Welsh sports sailor<ref>{{#invoke:citation/CS1|citation

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  • 1992Sean Abbott, Australian cricketer<ref>{{#invoke:citation/CS1|citation

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  • 1992 – Eric Kendricks, American football player<ref>{{#invoke:citation/CS1|citation

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  • 1996 – Norberto Briasco, Argentine-Armenian footballer<ref>{{#invoke:citation/CS1|citation

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  • 1996 – Reece Prescod, British sprinter<ref>{{#invoke:citation/CS1|citation

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  • 2000 – Ferran Torres, Spanish footballer<ref>{{#invoke:citation/CS1|citation

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Deaths

Pre-1600

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  • 1460Albert III, Duke of Bavaria-Munich (born 1401)<ref>{{#invoke:citation/CS1|citation

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1601–1900

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1901–present

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  • 1972Tom Davies, American football player and coach (born 1896)<ref>{{#invoke:citation/CS1|citation

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  • 1980 – Gil Elvgren, American painter and illustrator (born 1914)<ref>{{#invoke:citation/CS1|citation

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  • 1984Ludwik Starski, Polish screenwriter and songwriter (born 1903)<ref>{{#invoke:citation/CS1|citation

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  • 2008Janet Kagan, American author (born 1946)<ref>{{#invoke:citation/CS1|citation

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  • 2008 – Erik Ortvad, Danish painter and illustrator (born 1917)<ref>{{#invoke:citation/CS1|citation

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Holidays and observances

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See also

References

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