Which technological development was introduced in 1876?

The telephone was introduced in 1876 by Alexander Graham Bell, marking a significant advancement in communication technology. It allowed for voice communication over long distances, fundamentally changing how people interacted and conducted business. This invention paved the way for the development of modern telecommunications, further linking societies and enabling more immediate communication.

In contrast, the electric light bulb was developed in the late 19th century, but its invention is often associated with Thomas Edison, who patented it in 1879. Television was not developed until the 20th century, specifically in the 1920s. The internet, as we understand it today, began to take shape in the late 20th century, with the early networks emerging in the 1960s and becoming more public in the 1990s. Thus, the telephone is the only option from this list that was introduced as a technology in 1876.