Who invented the first practical telephone?

Alexander Graham Bell invented the first practical telephone in 1876. His invention transformed global communication by converting sound waves into electrical signals and transmitting them over wires, allowing voices to be heard over long distances. Bell’s groundbreaking work laid the foundation for modern telecommunications, influencing the development of radio, the internet, and mobile phones. He received the first U.S. patent for the telephone, marking a major milestone in technological innovation. Beyond this invention, Bell also made contributions to aeronautics, hearing devices, and speech education, showcasing his dedication to improving human communication and accessibility through science and engineering.