Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Tedbury Camp is a multivallate Iron Age promontory hill fort defended by two parallel banks near Great Elm, Somerset, England. Hill forts developed in the Late Bronze and Early Iron Age, roughly the start of the first millennium BC. The reason for their emergence in Britain, and their purpose, has been a subject of debate. It has been argued that they could have been military sites constructed in response to invasion from continental Europe, sites built by invaders, or a military reaction to social tensions caused by an increasing population and consequent pressure on agriculture.