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  2. Border - Wikipedia

    en.wikipedia.org/wiki/Border

    Border art can be defined as an art that is created in reference to any number of physical or imagined boundaries. This art can but is not limited to social, political, physical, emotional and/or nationalist issues. Border art is not confined to one particular medium. Border art/artists often address the forced politicization of human bodies ...

  3. Boundary (topology) - Wikipedia

    en.wikipedia.org/wiki/Boundary_(topology)

    A boundary point of a set is any element of that set's boundary. The boundary defined above is sometimes called the set's topological boundary to distinguish it from other similarly named notions such as the boundary of a manifold with boundary or the boundary of a manifold with corners, to name just a few examples.

  4. Boundaries between the continents - Wikipedia

    en.wikipedia.org/wiki/Boundaries_between_the...

    The boundary between Asia and Europe is unusual among continental boundaries because of its largely mountain-and-river-based characteristics north and east of the Black Sea. Asia and Europe are considered separate continents for historical reasons; the division between the two goes back to the early Greek geographers .

  5. Borders of the United States - Wikipedia

    en.wikipedia.org/wiki/Borders_of_the_United_States

    Mexico–United States border, including Pacific Ocean and Gulf of Mexico. Land boundaries defined by the 1819 Adams–Onís Treaty (with Spain), 1828 Treaty of Limits, 1848 Treaty of Guadalupe Hidalgo, 1854 Gadsden Purchase, and Boundary Treaty of 1970. Ocean boundaries defined by bilateral treaties in 1970, 1978, and 2001. [1] Contiguous ...

  6. Maritime boundary - Wikipedia

    en.wikipedia.org/wiki/Maritime_boundary

    The terms boundary, frontier and border are often used as if they were interchangeable, but they are also terms with precise meanings. [6] A boundary is a line. The terms "frontier", "borderland" and "border" are zones of indeterminate width. Such areas form the outermost part of a country. Borders are bounded on one side by a national boundary ...

  7. Boundary marker - Wikipedia

    en.wikipedia.org/wiki/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. [1] There are several other types of named border markers, known as boundary trees, [2] [3] pillars, monuments, obelisks, and ...

  8. Natural border - Wikipedia

    en.wikipedia.org/wiki/Natural_border

    A natural border is a border between states or their subdivisions which is concomitant with natural formations such as rivers or mountain ranges. The "doctrine of natural boundaries" developed in Western culture in the 18th century being based upon the "natural" ideas of Jean-Jacques Rousseau and developing concepts of nationalism. [1]

  9. Boundary (real estate) - Wikipedia

    en.wikipedia.org/wiki/Boundary_(real_estate)

    The boundary (in Latin: limes) may appear as a discontinuation in the terrain: a ditch, a bank, a hedge, a wall, or similar, but essentially, a legal boundary is a conceptual entity, a social construct, adjunct to the likewise abstract entity of property rights. A cadastral map displays how boundaries subdivide land into units of ownership.