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year
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Introduction References & Edit History Related Topics
Images & Videos
calendar of Gregory XIII from January to June
Study the different ways of defining a year - a tropical year, a sidereal year, and the anomalistic year
What is Leap Day?
Martian year
Discover the length of days and years on Mercury
Quizzes
barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure
Fun Facts of Measurement & Math
Related Questions
Read Next
Flower. Fruit tree. Cherry. Cherry tree. Cherry blossom. Spring. Close-up of cherry blossoms in bloom.
The Perils of an Early Spring
Ancient Mayan Calendar
Our Days Are Numbered: 7 Crazy Facts About Calendars
February 29, leap day, leap year, happens every four years
Leap Day, February 29
Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
How Fast Is the Universe Expanding?
Calendar marking march 15th
22 Questions About Time and Timekeeping Answered
Discover
Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army
8 Deadliest Wars of the 21st Century
A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England
Inventors and Inventions of the Industrial Revolution
Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society
12 Novels Considered the “Greatest Book Ever Written”
Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway
Flags That Look Alike
Rural Irish landscape, Sligo, Ireland.
Why Is Ireland Two Countries?
Santa Claus flying in his sleigh, christmas, reindeer
Was Santa Claus a Real Person?
Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.
10 Famous Artworks by Leonardo da Vinci

year: Related Content

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Photos and Videos

calendar of Gregory XIII from January to June
Study the different ways of defining a year - a tropical year, a sidereal year, and the anomalistic year
What is Leap Day?
Martian year
Discover the length of days and years on Mercury
See All Videos and Images →

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Key People

al-Battānī
Arab astronomer and mathematician

Related Quizzes and Features

Quiz
barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure
Fun Facts of Measurement & Math
List
Ancient Mayan Calendar
Our Days Are Numbered: 7 Crazy Facts About Calendars