Jalali calendar adopted
1079 · Event
Khayyam and the astronomers of Sultan Malik-Shah's Isfahan observatory devise a solar calendar more accurate than the Gregorian; its successor is still used in Iran.
On these timelines: Persia and Iran, The Islamic Golden Age, Science & Technology, Master
More from Persia and Iran
- Achaemenid Persian Empire (550 BCE)
- Cyrus the Great (600 BCE)
- Sassanid Empire (224)
- Fall of the Sasanian Empire (651)
- Safavid Empire (1501)
- Alexander's conquest of the Persian Empire (334 BCE)
- Safavid Iran converts to Twelver Shi'ism (1501)
- Zoroaster (1200 BCE)
Around 1079
- Norman Conquest of England (1066)
- First Crusade (1096)
- East–West Schism (1054)
- Angkor Wat built (1113)
- Domesday Book (1086)
- Reign of William the Conqueror (1066)
- Crusades (1095)
- Battle of Hastings (1066)
- Capture of Jerusalem by First Crusade (1099)
- Bi Sheng invents movable type (1040)