The origins of the CBA lie in the Congress of Archaeological Societies, founded in 1898, but it was in 1943, with the tide of war turning, that archaeologists in Britain began to contemplate the magnitude of tasks and opportunities that would confront them at the end of hostilities. In London alone more than 50 acre of the City lay in ruins awaiting redevelopment, while the historic centres of Bristol, Canterbury, Exeter, Southampton, and many other towns had suffered devastation. In response to a resolution from the Oxford Meeting of the Society for the Promotion of Roman Studies, Sir Alfred Clapham, then President of the Society of Antiquaries of London, called a meeting of the Congress of Archaeological Societies "to discuss the requirements of archaeology in the post-war period". As a result, it was agreed to form a Council for British Archaeology to promote, both collectively and through its members, British archaeology in all its aspects.