International map of the world on the scale 1:1,000,000. Relief shown by contours and spot heights. Depths shown by bathymetric tints. Exhibited in “Journeys of the Imagination,” at the Boston Public Library, Boston, MA, April - August 2006. MB (BRL). Ushering in an era of international co-operation at the beginning of the 20th century, the world's major countries joined together to create a comprehensive and uniform series of topographic map sheets for the entire world. The participating countries agreed that the proposed series would use standardized map symbols, including hypsometric tints
International map of the world on the scale 1:1,000,000. Relief shown by contours and spot heights. Depths shown by bathymetric tints. Exhibited in “Journeys of the Imagination,” at the Boston Public Library, Boston, MA, April - August 2006. MB (BRL). Ushering in an era of international co-operation at the beginning of the 20th century, the world's major countries joined together to create a comprehensive and uniform series of topographic map sheets for the entire world. The participating countries agreed that the proposed series would use standardized map symbols, including hypsometric tints (a gradation of assigned colors) to show elevations. Each map sheet, corresponding to four degrees of latitude and six degrees of longitude, would have a scale of 1:1,000,000 (or 1 inch equals miles). Subsequently, the map series was known as the International Map of the World (IMW) or the Millionth Map. Most standard-sized world maps (two by three feet) have a scale in the range of 1:50,000,000 (one inch equals 800 miles). These small-scale maps depict the entire world but show a limited amount of detail. The intended purpose of the international series was to provide a general planning map for the entire world at a larger scale with the capability of showing greater detail. However, to provide geographic coverage of the entire world at a scale of 1:1,000,000 required more than 2,000 map sheets (each measuring approximately by 2 feet). If placed adjacent to each other on a sphere, the resulting globe would have a diameter of 42 feet. Unfortunately, the IMW has had a sporadic history. Following initial discussions about map specifications at an international geographical congress in London in 1909, the project officially began in 1913. Less than a dozen sheets were completed by the beginning of World War I with another 400 completed during the 1930s. During World War II, little progress was made on this project, but following the war, the United Nations assumed su
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