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NATIONAL PARKS

Name, location, and year authorized Acreage Outstanding characteristicsAcadia (Maine), 1919 47,548.94Rugged seashore on Mt. Desert Island and adjacent mainlandArches (Utah), 1971 76,518.98…

environmentalism

(Encyclopedia) environmentalism, movement to protect the quality and continuity of life through conservation of natural resources, prevention of pollution, and control of land use. The philosophical…

Pleistocene epoch

(Encyclopedia) Pleistocene epochPleistocene epochplīˈstəsēn [key], 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table). According to a…

Pluto, in astronomy

(Encyclopedia) Pluto, in astronomy, a dwarf planet and the first Kuiper belt, or transneptunian, object (see comet) to be discovered (1930) by astronomers. Pluto has an elliptical orbit usually lying…

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1513 After Juan Ponce de León, a Spanish explorer, helped conquer what is now the Dominican Republic and Puerto Rico, he secured a commission to conquer and colonize the island of "Bimini", an…

15 Texas Landmarks: Natural, Manmade, and Historic

Top of Page Source: iStockTexas is huge. In fact, it’s the largest state by area at 695km2 and home to Houston, San Antonio, and Dallas which all make the top 10 most populated cities in the USA.…

Milestones in Environmental Protection

Preservation and conservation milestones in the United States by Holly Hartman 1840s–1860s 1870s–1880s 1890s–1920s 1930s–1960s 1970s 1980s 1990s 2000s Most Recent Entry…

Aircraft Crashes

Find a list of the worst aircraft crashes in the world, including the Hindenburg disaster and the Sept 11, 2001, attacks. (See also Terrorist Attacks.) 1921 Aug. 24, England: British…

Mars, in astronomy

(Encyclopedia) Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost…

Oscars–Filmographies

Best Director Best Actor Best Actress Best Suppporting Actor Best Supporting Actress Best Adapted Screenplay Best Original Screenplay Best Original Music or Comedy Score Best Dramatic…