Baird's device relied upon the Nipkow disk and thus became known as the mechanical television.
Pigeon post had Persian roots, and was later used by the Romans to aid their military.
Frontinus said that Julius Caesar used pigeons as messengers in his conquest of Gaul.
Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles.
20th and 21st century technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites.
A revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in radio communications by Guglielmo Marconi, who won the Nobel Prize in Physics in 1909.