Which of the following is not an ancient medium for transmitting information?

"Telephone" is not an ancient medium for transmitting information. Fire lighting, beating of drums, and whistling are all ancient methods of transmitting information that were used in various cultures and societies before the invention of modern communication technologies. Fire lighting was used to signal messages over long distances, often using a system of smoke signals. Beating of drums was also used as a way of communicating messages over long distances, with different rhythms and patterns used to convey different meanings. Whistling was also used as a means of communication, particularly in areas with dense vegetation where it was difficult to see or hear other people. In some cultures, whistling languages were developed as a way of communicating over long distances. However, the telephone is a modern invention that was first developed in the late 19th century. It revolutionized communication by allowing people to talk to each other in real-time over long distances using electric signals transmitted over wires. In summary, fire lighting, beating of drums, and whistling are all ancient methods of transmitting information, while the telephone is a modern invention that was not used in ancient times.