Curfew
Overview
 
A curfew is an order specifying a time after which certain regulations apply. Examples:
  1. An order by a government
    Government
    Government refers to the legislators, administrators, and arbitrators in the administrative bureaucracy who control a state at a given time, and to the system of government by which they are organized...

     for certain persons to return home daily before a certain time. It can be imposed to maintain public order (such as those after the Northeast Blackout of 2003
    Northeast Blackout of 2003
    The Northeast blackout of 2003 was a widespread power outage that occurred throughout parts of the Northeastern and Midwestern United States and Ontario, Canada on Thursday, August 14, 2003, just before 4:10 p.m....

    , the 2005 civil unrest in France
    2005 civil unrest in France
    The 2005 civil unrest in France of October and November was a series of riots by mostly Muslim North African youths in Paris and other French cities, involving mainly the burning of cars and public buildings at night starting on 27 October 2005 in Clichy-sous-Bois...

    , the 2010 Chile earthquake
    2010 Chile earthquake
    The 2010 Chile earthquake occurred off the coast of central Chile on Saturday, 27 February 2010, at 03:34 local time , having a magnitude of 8.8 on the moment magnitude scale, with intense shaking lasting for about three minutes. It ranks as the sixth largest earthquake ever to be recorded by a...

     and 2011 Egyptian revolution
    2011 Egyptian revolution
    The 2011 Egyptian revolution took place following a popular uprising that began on Tuesday, 25 January 2011 and is still continuing as of November 2011. The uprising was mainly a campaign of non-violent civil resistance, which featured a series of demonstrations, marches, acts of civil...

    ), or suppress targeted groups. Curfews have long been directed at certain groups in many cities or states, such as Japanese-American university students on the West Coast of the United States
    West Coast of the United States
    West Coast or Pacific Coast are terms for the westernmost coastal states of the United States. The term most often refers to the states of California, Oregon, and Washington. Although not part of the contiguous United States, Alaska and Hawaii do border the Pacific Ocean but can't be included in...

     during World War II
    World War II
    World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

    , African-Americans in many towns during the time of Jim Crow laws
    Jim Crow laws
    The Jim Crow laws were state and local laws in the United States enacted between 1876 and 1965. They mandated de jure racial segregation in all public facilities, with a supposedly "separate but equal" status for black Americans...

    , or people younger than a certain age (usually within a few years either side of 18) in many towns of the United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

     since the 1980s; see below.
  2. An order by the legal guardian
    Legal guardian
    A legal guardian is a person who has the legal authority to care for the personal and property interests of another person, called a ward. Usually, a person has the status of guardian because the ward is incapable of caring for his or her own interests due to infancy, incapacity, or disability...

    s of a teenager to return home by a specific time, usually in the evening or night.
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