In 1258, when both China and the Islamic world were part of the Mongol Empire, Hulagu Khan established an observatory in Maragheh for the astronomer Nasir al-Din al-Tusi at which a few Chinese astronomers were present, resulting in the Chinese-Uighur calendar that al-Tusi describes in his Zij-i Ilkhani.^[2] The twelve year cycle, including Turkish/Mongolian translations of the animal names (known as sanawat-e turki سنوات ترکی,) remained in use for chronology, historiography, and bureaucratic purposes in the Persian and Turkish speaking world from Asia Minor to India throughout the Medieval and Early Modern periods. In Iran it remained common in agricultural records and tax assessments until a 1925 law deprecated its use.

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Notes

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References

• van Dalen, Benno; Kennedy, E.S.; Saiyid, Mustafa K., «The Chinese-Uighur Calendar in Tusi's Zij-i Ilkhani», Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften 11 (1997) 111-151.

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See also

• Chinese New Year
• Chinese Zodiac
• Culture of China
• Sexagesimal cycle

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External links

• Online Chinese Calendar Chinese / Gregorian Calendar
• Rules for the Chinese Calendar
• Chinese Zodiac Chart Find your Chinese Zodiac sign based on your date of birth.
• Calendar Conversion
  • Gregorian-Chinese calendar converterOnline: only for years after 1912
  • Two-Thousand-Year Chinese Calendar Converter (in Chinese) - works for all dates from the Han Dynasty until 2100
  • Convert Gregorian to Chinese Lunar and Solar Dates
• Pages from the Hong Kong Observatory website
  • The 24 Solar Terms of Jieqi
  • Heavenly Stems and Earthly Branches
• Gender Prediction
  • Gregorian-Lunar Calendar Conversion Table
  • Chinese Baby Gender Calendar
• Chinese Lunar Calendar 2008 with 'Yellow Calendar'
• Chinese Lunar Calendar 2006
• Chinese Lunar Calendar 2007
  • exact Chinese Zodiac Calculator
• CHINESE CALENDAR & CHRONOLOGY
• Tooltip Chinese Calendar

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