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Boundary marker
A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary.〔 There are several other types of named border markers, known as pillars, obelisks, and corners.〔 Border markers can also be markers through which a border line runs in a straight line to determine that border. They can also be the markers from which a border marker has been fixed.〔
==Purpose ==
The ancient Greeks had boundary markers.〔http://www.stanford.edu/group/dispersed_author/docs/GreekHoroi.pdf〕 Many borders were created as the invisible lines of latitude or longitude, which often created a need to mark these borders on the ground, as closely as possible to these lines, using the available technology of the day.〔 The advances in GPS technology proves that there are many inaccurately marked borders on the ground.〔
Boundary markers have often been used to mark critical points on boundaries between countries, states or local administrations but have also been used to mark out the limits of private land-holdings especially in areas where fences or walls are impractical or unnecessary.
Boundary markers may be used to mark property boundaries (land-ownership), or political boundaries. In developed countries use of markers for land-ownership has in many places been replaced by maps and land ownership registration. Boundary markers are not legal markers in Western countries and may have troublesome legal effects. However, boundary markers have legal meaning in Japan, and are generally installed across the country.〔(Civil Law 229 ); (more information )〕 Markers are still used extensively for marking international borders; international boundary markers are placed and can be maintained by mutual agreement of the bordering countries.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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