Description The Gall–Peters cylindrical equal-area projection with Tissot's indicatrices of deformation Formula The Gall–Peters projection achieved notoriety in the late 20th century as the centerpiece of a controversy about the political implications of map design. state of Massachusetts and Boston Public Schools began phasing in these maps in March 2017, becoming the first public school district and state in the United States to adopt Gall–Peters maps as their standard. ![]() Maps based on the projection are promoted by UNESCO, and they are also widely used by British schools. Robinson in a pamphlet put out by the American Cartographic Association in 1986. The name "Gall–Peters projection" was first used by Arthur H. Peters brought the projection to a wider audience beginning in the early 1970s through his "Peters World Map". Gall described the projection in 1855 at a science convention and published a paper on it in 1885. The projection is named after James Gall and Arno Peters. It is a cylindrical equal-area projection with latitudes 45° north and south as the regions on the map that have no distortion. Like all equal-area projections, it distorts most shapes. The Gall–Peters projection is a rectangular, equal-area map projection. Cylindrical equal-area map projection The Gall–Peters projection of the world map
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