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OS Card
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Ordnance Survey Record Card. Before the 1970s the Ordnance Survey (OS) were responsible for recording archaeological monuments during mapping exercises. This helped the Ordnance Survey to decide which monuments to publish on maps. During these exercises the details of the monuments were written down on record cards. Copies of some of the cards are kept at the Warwickshire Sites and Monuments Record. The responsibility for recording archaeological monuments later passed to the Royal Commission on Ancient and Historic Monuments.
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Documentary Evidence
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Documentary evidence is another name for written records. The first written records in Britain date back to the Roman period. Documentary evidence can take many different forms, including maps, charters, letters and written accounts.
When archaeologists are researching a site, they often start by looking at documentary evidence to see if there are clues that will help them understand what they might find. Documentary evidence can help archaeologists understand sites that are discovered during an excavation, field survey or aerial survey.
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Resistivity Survey
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A resistivity survey measures the electrical resistance of the soil and any buried features within it. Where there are buried pits and ditches, there is less resistance to the flow of electricity. Where there are archaeological remains made from stone, for example a wall, the resistance is greater. These differences in resistance are measured and recorded by archaeologists using a resistivity meter. The measurements can then be used to plot features that exist below the ground. See also geophysical survey.
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excavation
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Archaeologists excavate sites so that they can find information and recover archaeological materials before they are destroyed by erosion, construction or changes in land-use.
Depending on how complicated and widespread the archaeological deposits are, excavation can be done by hand or with heavy machinery. Archaeologists may excavate a site in a number of ways; either by open area excavation, by digging a test pit or a trial trench. more ->
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Aerial Photograph
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Aerial photographs are taken during an aerial survey, which involves looking at the ground from above. It is usually easier to see cropmarks and earthworks when they are viewed from above. Aerial photographs help archaeologists to record what they see and to identify new sites. There are two kinds of aerial photographs; oblique and vertical.
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Imperial
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1751 AD to 1914 AD (end of the 18th century AD to the beginning of the 20th century AD)
This period comes after the Post Medieval period and before the modern period and starts with beginning of the Industrial Revolution in 1750. It includes the second part of the Hannoverian period (1714 – 1836) and the Victorian period (1837 – 1901). The Imperial period ends with the start of the First World War in 1914. more ->
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INN *
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A public house for the lodging and entertainment of travellers, etc.
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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LODGE *
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A small building, often inhabited by a gatekeeper, gamekeeper or similar. Use specific type where known.
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INDUSTRIAL *
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This is the top term for the class. See INDUSTRIAL Class List for narrow terms.
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HILL FIGURE *
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A giant figure of a man or animal carved on chalk hillsides in southern England.
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TARGET *
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Any structure or object, used for the purpose of practice shooting by aerial, seaborne or land mounted weapons.
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* Copyright of English Heritage (1999)