A map of England (Britannia) under the Roman Empire, from the time of the first invasion by Julius Caesar (55 BC) extending to the invasion of the Saxons (AD 449). The Roman Period of control of Britannia is generally considered AD 43 to 410. On this map, Roman place names are in Latin, with Roman territories in bold caps, and the territories of the British Tribes in bold italics. The map shows Roman roads (Icknield Street, Watling Street, Ermine Street), and defensive walls (Antonine and Hadrian's), major cities of the time, major river ways, topography, and coastal waters. "The Romans divided the island of Britain into five provinces: vis., 1. Britannia Prima, situated south of the Thames and the Severn rivers; 2. Britannia Secunda, now Wales (nearly); 3. Flavia Caesariensis (Flavia Caesarian province), situated to the north of the Thames, east of the Severn, and south of the Mersey and Humber rivers; 4. Maxima Caesariensis (the great Caesarian province), extending from the Mersey and the Humber as far as the wall of Hadrian, or Severus; and 5. Valentia (from the Emperor Valens), situated between the wall of Hadrian, or Severus, and the rampart of Agricola. The region to the north of Valentia was called by the Romans Caledonia (from a word meaning people of the woods). The municipal towns were Ebor'acum (York) and Verula'mium (St. Albans). There were nine colonies, the chief of which were Londinum (London), Aquae Solis (Bath), Deva (Chester), and Lindum (Lincoln)." - J. Anderson, 1889, pp. 7-8.