Li Chunfeng

Li Chunfeng (602–670) was a Chinese astronomer, historian, mathematician, and politician who was born in today's Baoji, Shaanxi, during the Sui and Tang dynasties. ^[1]

Armillary sphere

An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features, such as the ecliptic.

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Astrology

Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that propose that information about human affairs and terrestrial events may be discerned by studying the apparent positions of celestial objects.

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Baoji

Baoji is a prefecture-level city in western Shaanxi province, People's Republic of China.

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Book of Jin

The Book of Jin is an official Chinese historical text covering the history of the Jin dynasty from 266 to 420.

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Book of Sui

The Book of Sui is the official history of the Sui dynasty, which ruled China in the years AD 581–618.

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Calendar

A calendar is a system of organizing days.

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Calendar reform

Calendar reform or calendrical reform is any significant revision of a calendar system.

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Chang'an

Chang'an is the traditional name of Xi'an.

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Chinese calendar

The traditional Chinese calendar (l; informally l) is a lunisolar calendar, combining the solar, lunar, and other cycles for various social and agricultural purposes.

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Chinese culture

Chinese culture is one of the world's oldest cultures, originating thousands of years ago.

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Circle

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

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Eclipse

An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer.

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Encyclopedia of China

The Encyclopedia of China is the first large-entry modern encyclopedia in the Chinese language.

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Ganying

Gǎnyìng or yìng is a Chinese cultural keyword meaning a "correlative resonance" pulsating throughout the purported force field of qi that infuses the cosmos.

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Intercalation (timekeeping)

Intercalation or embolism in timekeeping is the insertion of a leap day, week, or month into some calendar years to make the calendar follow the seasons or moon phases.

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Jin dynasty (266–420)

The Jin dynasty or Jin Empire, sometimes distinguished as the or the, was an imperial dynasty in China that existed from 266 to 420.

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Liu Hui

Liu Hui was a Chinese mathematician who published a commentary in 263 CE on Jiu Zhang Suan Shu (The Nine Chapters on the Mathematical Art). He was a descendant of the Marquis of Zixiang of the Eastern Han dynasty and lived in the state of Cao Wei during the Three Kingdoms period (220–280 CE) of China.

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MacTutor History of Mathematics Archive

The MacTutor History of Mathematics Archive is a website maintained by John J. O'Connor and Edmund F. Robertson and hosted by the University of St Andrews in Scotland.

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Mandate of Heaven

The Mandate of Heaven is a Chinese political ideology that was used in Ancient China and Imperial China to legitimize the rule of the king or emperor of China.

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Metrology

Metrology is the scientific study of measurement.

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Music

Music is the arrangement of sound to create some combination of form, harmony, melody, rhythm, or otherwise expressive content.

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Pi

The number (spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.

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Sui dynasty

The Sui dynasty was a short-lived Chinese imperial dynasty that ruled from 581 to 618.

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Tang dynasty

The Tang dynasty (唐朝), or the Tang Empire, was an imperial dynasty of China that ruled from 618 to 907, with an interregnum between 690 and 705.

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Taoism

Taoism or Daoism is a diverse philosophical and religious tradition indigenous to China, emphasizing harmony with the Tao—generally understood as an impersonal, enigmatic process of transformation ultimately underlying reality.

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Ten Computational Canons

The Ten Computational Canons was a collection of ten Chinese mathematical works, compiled by early Tang dynasty mathematician Li Chunfeng (602–670), as the official mathematical texts for imperial examinations in mathematics.

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The Nine Chapters on the Mathematical Art

The Nine Chapters on the Mathematical Art is a Chinese mathematics book, composed by several generations of scholars from the 10th–2nd century BCE, its latest stage being from the 2nd century CE.

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Tui bei tu

Tui bei tu is a Chinese prophecy book from the 7th-century Tang dynasty.

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Twenty-Four Histories

The Twenty-Four Histories, also known as the Orthodox Histories, are the Chinese official dynastic histories covering from the earliest dynasty in 3000 BC to the Ming dynasty in the 17th century.

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Zu Gengzhi

Zu Geng or Zu Gengzhi (ca. 480 – ca. 525) was a Chinese mathematician, politician, and writer.

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References

[1] https://en.wikipedia.org/wiki/Li_Chunfeng

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Li Chunfeng

Table of Contents

See also

602 births

670 deaths

7th-century Chinese astronomers

7th-century Chinese historians

7th-century Chinese mathematicians

Historians from Shaanxi

Mathematicians from Shaanxi

Politicians from Baoji

Tang dynasty science writers

Writers from Baoji

References