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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.
The water cycle (or hydrologic cycle or hydrological cycle ), is a biogeochemical cycle that involves the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time. However, the partitioning of the water into the major reservoirs of ice, fresh water, salt water and ...
Usage. This template is placed at the bottom of the Timeline of United States history articles to aid navigation in the series. This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute ), it is hidden apart ...
Timeline of the history of the United States (1930–1949) Timeline of the history of the United States (1950–1969) Timeline of the history of the United States (1970–1989) Timeline of the history of the United States (1990–2009) Timeline of the history of the United States (2010–present)
Thomas Jefferson becomes the 3rd president of the United States on March 4, 1801. First Barbary War, 1801–1805. The Territory Northwest of the River Ohio is admitted to the Union as the State of Ohio (the 17th state) on March 1, 1803. The United States takes possession of the Louisiana Purchase, December 20, 1803.
Water storage. Water storage is a broad term referring to storage of both potable water for consumption, and non potable water for use in agriculture. In both developing countries and some developed countries found in tropical climates, there is a need to store potable drinking water during the dry season. In agriculture water storage, water is ...
The Watergate scandal refers to the burglary and illegal wiretapping of the headquarters of the Democratic National Committee, in the Watergate complex by members of President Richard Nixon's re-election campaign, and the subsequent cover-up of the break-in resulting in Nixon's resignation on August 9, 1974, as well as other abuses of power by the Nixon White House that were discovered during ...
Timeline of computing presents events in the history of computing organized by year and grouped into six topic areas: predictions and concepts, first use and inventions, hardware systems and processors, operating systems, programming languages, and new application areas. Detailed computing timelines: before 1950, 1950–1979, 1980–1989, 1990 ...