Britannica AI Icon

transatlantic cable

communications

Quick Summary

The transatlantic cable was a groundbreaking innovation in communications, enabling near-instantaneous transmission of messages across the Atlantic Ocean. The concept was first proposed by American inventor Samuel Morse in 1843.

The first attempt at an Atlantic telegraph cable was made in 1858 by the Atlantic Telegraph Company, led by engineers like Sir Charles Tilston Bright. Although this initial cable transmitted fewer than 750 messages, it lasted only three weeks before failing. Despite this early setback, the project proved the feasibility of transatlantic communication via cable.

Subsequent efforts led to the development of more robust undersea cables. The first successful transatlantic telephone cable was laid in 1956 between Canada and Scotland. This marked a significant advancement, allowing for a dramatic increase in transatlantic telephone traffic. Modern undersea cables, particularly those using fiber optics, now transmit data at extremely high rates, supporting millions of voice circuits and enabling high-speed internet communication globally.123

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.