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  2. 1940 United States census - Wikipedia

    en.wikipedia.org/wiki/1940_United_States_census

    A number of new questions were asked including where people were five years before, highest educational grade achieved, and information about wages. This census introduced sampling techniques; one in 20 people were asked additional questions on the census form. Other innovations included a field test of the census in 1939.

  3. United States census - Wikipedia

    en.wikipedia.org/wiki/United_States_census

    The United States census (plural censuses or census) is a census that is legally mandated by the Constitution of the United States. It takes place every ten years. The first census after the American Revolution was taken in 1790 under Secretary of State Thomas Jefferson. There have been 23 federal censuses since that time. [1]

  4. State censuses in the United States - Wikipedia

    en.wikipedia.org/wiki/State_censuses_in_the...

    Also, some of these censuses were conducted in U.S. states while they were still U.S. territories (before they became U.S. states). No state has conducted a state census since the last Massachusetts state census was conducted in 1985. ⊗ marks the point when statehood was attained.

  5. United States in World War II - Wikipedia

    en.wikipedia.org/wiki/United_States_in_World_War_II

    This page was last edited on 5 November 2024, at 07:18 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. Demographic history of the United States - Wikipedia

    en.wikipedia.org/wiki/Demographic_history_of_the...

    After World War II, the US experienced a shift away from the cities and into suburbs mostly due to the cost of land, the availability of low-cost government home loans, fair housing policies, and the construction of highways. [35] Many of the original manufacturing cities lost as much as half their populations between 1950 and 1980.

  7. 2010 United States census - Wikipedia

    en.wikipedia.org/wiki/2010_United_States_Census

    The 2010 United States census was the 23rd United States census.National Census Day, the reference day used for the census, was April 1, 2010. [1] The census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities.

  8. List of wars involving the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_wars_involving_the...

    This is a list of military conflicts, that United States has been involved in. There are currently 123 military conflicts on this list, 5 of which are ongoing. [citation needed] These include major conflicts like the American Revolutionary War, the War of 1812, the Mexican–American War, the American Civil War, the Spanish-American War, World War I, World War II and the Gulf War.

  9. Population and housing censuses by country - Wikipedia

    en.wikipedia.org/wiki/Population_and_housing...

    At that point there were 797,584 citizens in the kingdom. Georg Christian Oeder took a statistical census in 1771 which covered Copenhagen, Sjælland, Møn, and Bornholm. After that, censuses followed somewhat regularly in 1787, 1801, and 1834, and between 1840 and 1860, the censuses were taken every five years, and then every ten years until 1890.