A Mark Twain short story, written in 1898, and set a few years into the future, posits the global ubiquity of a new device called the “telelectroscope,” which lets people around the world see and hear each other. The author, a journalist and a social reformer, explored how an innocent man might save himself from a death sentence by using global information technology to find evidence to support his defense.

Time, the autumn of 1901. As soon as the Paris contract released the telelectroscope, it was delivered to public use, and was soon connected with the telephonic systems of the whole world. The improved ‘limitless-distance’ telephone was presently introduced, and the daily doings of the globe made visible to everybody, and audibly discussible, too, by witnesses separated by any number of leagues. :Mark Twain