Irish Historic Towns Atlas, No. 21 examines the topographical development of Limerick's three urban centers - Viking, Anglo-Norman, and Georgian - depicting the strategic importance of the city for military and trading purposes beginning with the 9th century. Histories of over 4,000 sites are documented, with a rich collection of maps and illustrations from the 16th to the 21st centuries. This oversized pack, which also includes a fully searchable CD-ROM, is part of the highly successful Irish Historic Towns Atlas series. The Irish Historic Towns Atlas project records the topographical development of a selection of Irish towns both large and small.