• The phonetic system does not use pictorial signs but symbols to refer to spoken sounds. Modern alphabets that many people in the world use today represent a phonetic form of communication.
• Remnants of these systems appeared either around 19th century B.C. from the early Canaanite p...

• The Greeks used messenger pigeons to deliver the results of the first Olympiad in the year 776 B.C. They also established a library in 530 B.C.
• Near the end of the B.C. period, systems of long-distance communication became more commonplace. In Egypt and China, messenger relay stati...

The Kish tablet is dated to 3500 B.C. and is considered by some experts to be the oldest form of known handwriting. It features proto-cuneiform signs - symbols that resemble a physical object. The Egyptian hieroglyphs are similar to this form of writing and date back to 3200 B.C.

Written l...

In 1835, inventors Joseph Henry and Edward Davey independently demonstrated electromagnetic relay, where a weak electrical signal can be amplified and transmitted across long distances. Cooke and Wheatstone invented the telegraph shortly after.

A few years later, Samuel Morse developed a v...