English (en): 
  Residential area during the Calcolithic period (Copper Age).  Residential area during the Bronze and Iron Age.  Residential area during the Roman Republic.  Occupation area during the Roman Empire.  Residential area during the Medieval Muslim period.  Residential area during the Medieval Christian period, the Modern Age and today.
Own work. Source :

OpenStreetMap
Museo virtual de Alcalá de Henares
Sémhur (talk)
OpenStreetMap contributors