section_path: Demographics/Demographic history
section_name: Demographic history
paragraph_text: Demographic history
  
  Jerusalem's population size and composition has shifted many times over its 5,000-year history. Since the 19th century, the Old City of Jerusalem has been divided into Jewish, Muslim, Christian, and Armenian quarters. Matthew Teller writes that this convention may have originated in the 1841 British Royal Engineers map of Jerusalem, or at least Reverend George Williams ' subsequent labelling of it.
  
  Most population data before 1905 is based on estimates, often from foreign travellers or organisations, since previous census data usually covered wider areas such as the Jerusalem District. These estimates suggest that since the end of the Crusades, Muslims formed the largest group in Jerusalem until the mid-nineteenth century.
  
  Between 1838 and 1876, a number of estimates exist which conflict as to whether Jews or Muslims were the largest group during this period, and between 1882 and 1922 estimates conflict as to exactly when Jews became an absolute majority of the population.