Vietnam.vn - Nền tảng quảng bá Việt Nam

How did the three numbers 911 change America?

Created in 1968, the 911 system is more than just three numbers, it is a modern rescue platform that saves millions of lives each year in the United States.

Báo Khoa học và Đời sốngBáo Khoa học và Đời sống05/07/2025

so-1.png
Before 1968, Americans had to call individual numbers for each agency such as police, fire or medical , causing delays when problems arose.
so-2.png
On July 1, 1968, the 911 phone number officially launched, starting in the state of Alabama as a turning point in emergency telecommunications.
so-3.png
The three digits "911" were chosen because they are easy to remember, easy to dial, and do not match any area or postal codes national.
so-4.png
Just a few months later, the first 911 call in US history was made in the city of Haleyville on February 16, 1968.
so-5.png
The 911 system quickly spread across the United States, accompanied by dispatch centers, locating maps, and specialized dispatcher training.
so-6.png
Thanks to the integration of GPS technology, cell phones and digital maps, 911 callers can be accurately located in just seconds.
so-7.png
Since the early 2000s, the United States has upgraded to E911 and NG911, allowing messages, photos, and data to be sent directly to the operator.
so-8.png
Today, more than 240 million calls to 911 each year are a testament to the importance of these three life-saving numbers to the American people.
Readers are invited to watch more videos : Iris scanning tool to verify human identity | VTV24

Source: https://khoahocdoisong.vn/ba-con-so-911-da-thay-doi-ca-nuoc-my-nhu-the-nao-post1552011.html


Comment (0)

No data
No data

Same category

How is the most expensive tea in Hanoi, priced at over 10 million VND/kg, processed?
Taste of the river region
Beautiful sunrise over the seas of Vietnam
The majestic cave arc in Tu Lan

Same author

Heritage

Figure

Business

No videos available

News

Political System

Local

Product