a) Telephone

The invention of the telephone in 1876 by Alexander Graham Bell significantly advanced communication during the Gilded Age. This groundbreaking technology revolutionized the way people communicated, making it possible to speak with someone miles away instantly. The telephone’s introduction and subsequent widespread adoption marked a major leap forward in communication technology, facilitating business, personal connections, and the rapid exchange of information. Its impact was profound, laying the groundwork for the global, interconnected world we live in today.