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Events on February 20 in history

1971Feb, 20

The United States Emergency Broadcast System is accidentally activated in an erroneous national alert.

The Emergency Broadcast System (EBS), sometimes called the Emergency Broadcasting System or the Emergency Action Notification System (EANS), was an emergency warning system used in the United States. It replaced the previous CONELRAD system and was used from 1963 to 1997, at which point it was replaced by the Emergency Alert System.

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Events on 1971

  • 8Jan

    Zulfikar Ali Bhutto

    Bowing to international pressure, President of Pakistan Zulfikar Ali Bhutto releases Bengali leader Sheikh Mujibur Rahman from prison, who had been arrested after declaring the independence of Bangladesh.
  • 7Jun

    First Amendment to the United States Constitution

    The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
  • 11Jul

    Chile

    Copper mines in Chile are nationalized.
  • 21Sep

    Bhutan

    Bahrain, Bhutan and Qatar join the United Nations.
  • 24Nov

    D. B. Cooper

    During a severe thunderstorm over Washington state, a hijacker calling himself Dan Cooper (aka D. B. Cooper) parachutes from a Northwest Orient Airlines plane with $200,000 in ransom money. He has never been found.