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What is the intercalation cycle of the Jalali calendar?

  • 33 years

  • 25 years

  • 50 years

  • 100 years

Answer

Omar Khayyam designed the Jalali calendar, which has a very precise 33-year intercalation cycle. This solar calendar provided the basis for the Persian calendar that is still in use after nearly a millennium.
Unlocking the Secrets of Omar Khayyam: A Journey Through the Life of a Persian Polymath Genius

Unlocking the Secrets of Omar Khayyam: A Journey Through the Life of a Persian Polymath Genius

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