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  2. Immigration policy of the United States - Wikipedia

    en.wikipedia.org/wiki/Immigration_policy_of_the...

    There are various nonimmigrant visa categories to seek entry into the United States for short periods of time and specific purposes. There are several requirements in order for someone to obtain a visa (e.g. visa fee, acceptable photograph, DS-160 visa application, required documents, visa interview appointment). [23]

  3. History of immigration to the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_immigration_to...

    The history of immigration to the United States details the movement of people to the United States from the colonial era to the present day. Throughout U.S. history , the country experienced successive waves of immigration , particularly from Europe (see European Americans ) and later on from Asia (see Asian Americans ) and Latin America (see ...

  4. History of time in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_time_in_the...

    The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones. Before then, time of day was a local matter, and most cities and towns used some form of local solar time , maintained by some well-known clock (for example, on a church steeple or in a ...

  5. History of laws concerning immigration and naturalization in ...

    en.wikipedia.org/wiki/History_of_laws_concerning...

    During the 18th and most of the 19th centuries, the United States had limited regulation of immigration and naturalization at a national level. Under a mostly prevailing "open border" policy, immigration was generally welcomed, although citizenship was limited to “white persons” as of 1790, and naturalization subject to five year residency ...

  6. History of the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_the_United_States

    This article is part of a series on the History of the United States Timeline and periods Prehistoric and Pre-Columbian Era until 1607 Colonial Era 1607–1765 1776–1789 American Revolution 1765–1783 Confederation Period 1783–1788 1789–1815 Federalist Era 1788–1801 Jeffersonian Era 1801–1817 1815–1849 Era of Good Feelings 1817–1825 Jacksonian Era 1825–1849 1849–1865 Civil ...

  7. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    Orders of magnitude (time) An order of magnitude of time is usually a decimal prefix or decimal order-of-magnitude quantity together with a base unit of time, like a microsecond or a million years. In some cases, the order of magnitude may be implied (usually 1), like a "second" or "year". In other cases, the quantity name implies the base unit ...

  8. History of the United States (1815–1849) - Wikipedia

    en.wikipedia.org/wiki/History_of_the_United...

    The history of the United States from 1815 to 1849 was the period of westward expansion in America. The spread of democracy opened the ballot box to nearly all white men, allowing Jacksonian democracy to dominate politics during the Second Party System .

  9. Historiography of the United States - Wikipedia

    en.wikipedia.org/wiki/Historiography_of_the...

    The American Historical Association (AHA) is the oldest and largest society for professional historians in the U.S. Founded in 1884, it promotes historical studies covering all continents and time periods, the teaching of history, and the preservation of and access to historical materials.