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World History


 
 

1 CE–1000 CE: Science & Technology

 
10 CE   Strabo maps Roman world
 
c. 60   Early steam engine invented by Hero of Alexandria
 
90–168   Greek astronomer Ptolemy
 
c. 100   Wheelbarrow invented in China
 
c. 100   India: Use of monsoon winds in shipping
 
105   First use of paper in China
 
c. 110   Menelaus pioneers trigonometry
 
c. 180   Galen writes key medical text
 
c. 200   Silkworms imported to China
 
c. 250   Diophantus of Alexandria develops algebra; earliest algebra books in China
 
c. 260   Successful use of 75-foot arch in Iran
 
c. 271   Earliest compass in China
 
321   Constantine’s calendar uses 7-day week
 
c. 340   Geometry of curves developed by Pappus of Alexandria
 
370–415   Hypatia of Alexandria, mathematician
 
c. 375   Use of stirrups in China
 
c. 485   Tsu Chung Chi accurately calculates pi
 
c. 499   Aryabhata compiles scientific tome in India
 
525   First use of Jesus’ birth to mark beginning of Common Era
 
c. 560   First silk production in Europe
 
600   First use of windmills in Persia
 
c. 650   China: City of Xian reaches population of 1 million
 
720   Arab chemist Abu Masa Dshaffar
 
c. 815   Persia: Mathematician al-Khowarizmi introduces arabic numerals
 
825   Al-Khowarizmi’s Algebra
 
850   First gunpowder used in China
 
c. 900   Viking innovations in shipbuilding
 
925   Al-Razi writes medical compendium
 
953   Al-Uqlidsi uses decimal fractions
 
c. 975   Hospital founded in Baghdad
 
c. 1000   Arabs spread decimal system to Spain
 
c. 1000   Spinning wheels used in China