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  2. Ogallala Aquifer - Wikipedia

    en.wikipedia.org/wiki/Ogallala_Aquifer

    The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]

  3. Alcatraz Federal Penitentiary - Wikipedia

    en.wikipedia.org/wiki/Alcatraz_Federal_Penitentiary

    United States Penitentiary, Alcatraz Island, also known simply as Alcatraz (English: / ˈ æ l k ə ˌ t r æ z /, Spanish: [a l k a ˈ t ɾ a θ] "the gannet") or The Rock, was a maximum security federal prison on Alcatraz Island, 1.25 miles (2.01 km) off the coast of San Francisco, California, United States.

  4. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The history of water supply and sanitation is one of a logistical challenge to provide clean water and sanitation systems since the dawn of civilization. Where water resources, infrastructure or sanitation systems were insufficient, diseases spread and people fell sick or died prematurely. Astronaut Jack Lousma taking a shower in space, 1974.

  5. Water year - Wikipedia

    en.wikipedia.org/wiki/Water_year

    Water year. A water year (also called hydrological year, discharge year or flow year) is a term commonly used in hydrology to describe a time period of 12 months for which precipitation totals are measured. Its beginning differs from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and ...

  6. Tanks of the United States - Wikipedia

    en.wikipedia.org/wiki/Tanks_of_the_United_States

    The MBT-70 (German: KPz 70) was an American– West German joint project to develop a new main battle tank during the 1960s. The MBT-70 was developed by the United States and West Germany in the context of the Cold War, intended to counter the new generation of Warsaw Pact tanks developed by the Soviet Union.

  7. 1940s - Wikipedia

    en.wikipedia.org/wiki/1940s

    The 1940s (pronounced "nineteen-forties" and commonly abbreviated as "the '40s" or "the Forties") was a decade that began on January 1, 1940, and ended on December 31, 1949. Most of World War II took place in the first half of the decade, which had a profound effect on most countries and people in Europe , Asia , and elsewhere.

  8. 1940 in the United States - Wikipedia

    en.wikipedia.org/wiki/1940_in_the_United_States

    September 16 – WWII: The Selective Training and Service Act of 1940 is signed into law by Franklin D. Roosevelt, creating the first peacetime draft in U.S. history. September 26 – WWII: The United States imposes a total embargo on all scrap metal shipments to Japan.

  9. 2023 in the United States - Wikipedia

    en.wikipedia.org/wiki/2023_in_the_United_States

    t. e. The following is a list of events of the year 2023 in the United States . The dominant political story of the year has been the 270-day long speakership of Representative Kevin McCarthy, whose slim majority in the House of Representatives has enabled a far-right rebellion to exert more weight over the lower chamber.

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