3500 BC to 2900 BC: The Phoenicians develop an alphabet. The Sumerians develop cuneiform writing-pictographs of accounts written on clay tablets. The Egyptians develop
1775 BC – The Greeks use a phonetic alphabet written from left to right.
1400 BC – Oldest record of writing in China, on bones.
1270 BC – The first encyclopedia is written in Syria.
900 BC – The very first postal service, for government use, in China.
776 BC – First recorded use of homing pigeons used to send a message the winners of the Olympic Games to Athenians.
530 BC – The Greeks start the very first library.
– 170 BC: Papyrus rolls and early parchments made of dried reeds-first portable and light writing surfaces.
– 100 BC: Human messengers on foot or horseback common in Egypt and China with messenger relay stations built. Sometimes fire messages used instead of humans.
14 AD- The Romans establish postal services.
37 – Heliographs – Roman Emperor Tiberius uses mirrors to send messages.
105 – Tsai Lun of China invents paper as we know it. Many say that this, along with the invention of the wheel, where what changed the world most.
305 – First wooden printing press invented in China, which used symbols carved on a wooden block.
1049 – First movable type, clay, invented in China by Pi Sheng.