Emergency Number Day
Emergency Number Day is held on September 11. United States. This event in the second decade of the month September is annual. 
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In the United States, the first emergency number appeared in 1946. The number was 116, which was an emergency line for Los Angeles, California. The first 911 emergency phone service first went into use in Alabama in 1968 and 911 systems became widespread during the 1980s.
The number 999 was first used in the UK to contact emergency services in 1937.
Similar holidays and events, festivals and interesting facts
National TV Dinner Day in USA on September 10
National Day of Service and Remembrance in United States on September 11 (September 11 attacks-related observances);
National Hot Cross Bun in USA on September 11
Stand Up To Cancer Day in US on September 11 (Held on the second Friday of September);
Defenders Day on September 12 (Maryland, United States);
National Day of Encouragement in United States on September 12
National Chocolate Milkshake Day on September 12 (United States);
Video Games Day on September 12 (The Nimrod was a computer built and displayed at the Festival of Britain in 1951 and designed to play a game called Nim);
World Headache Day on September 12 (A Day of Awareness and Support)
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