Events on February 20 in history

Emergency Broadcast System (February 20, 1971)

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.

References

Emergency Broadcast System

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Events on 1971

8 Jan

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.
7 Jun

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.
11 Jul

Chile
Copper mines in Chile are nationalized.
21 Sep

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

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.

Events on February 20 in history

Emergency Broadcast System (February 20, 1971)

References

Choose Another Date

Events on 1971

Zulfikar Ali Bhutto

First Amendment to the United States Constitution

Chile

Bhutan

D. B. Cooper