Much of today’s lightning speed communication that happens between computer terminals or between mobile phones located in different continents is possible due to a network of communication cables that lie across the seabed. These submarine communication cables made of copper and fiber-optics are responsible for carrying nearly the entirety of all intercontinental communications traffic. They represent a major technological revolution, but these cables are not a new technology. In fact, the first intercontinental communication cable was laid more than 150 years ago when Queen Victoria was still alive.
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Landing of the Atlantic Cable of 1866, Heart's Content, Newfoundland, by Robert Charles Dudley, 1866.