What was the significance of Alexander Graham Bell's invention of the telephone in revolutionizing communication and changing the way people greet each other over the phone?

Answer 1

Alexander Graham Bell's invention of the telephone revolutionized communication by allowing people to speak to each other over long distances in real-time. This changed the way people greeted each other over the phone by introducing the familiar "Hello" as a standard greeting, which Bell himself suggested. This simple greeting became widely adopted and remains a common way to answer the phone today.