COMUNICACIÓN

Prehistoric

3500 BCE

Cave paintings and petroglyphs: Early humans communicate through visual symbols and drawings.
   - Smoke signals: Used by ancient civilizations like the Greeks and Chinese to send messages over long distances.

Medieval

1500 BCE

Illuminated manuscripts: Monks in medieval Europe produce hand-copied books adorned with intricate illustrations.
   - Town criers: Official announcers who spread news and proclamations in public spaces.
   - Printing press (1440): Johannes Gutenberg invents the movable type printing press, revolutionizing mass communication.

Ancient

500 BCE

Hieroglyphics: Egyptians develop a complex writing system using pictorial symbols.
   - Cuneiform: Sumerians in Mesopotamia invent the earliest form of writing using wedge-shaped characters on clay tablets.
   - Papyrus scrolls: Ancient Egyptians create a portable writing surface from the papyrus plant.
   - Carrier pigeons: Used by various civilizations, including the Romans, Greeks, and Persians, to send written messages.

Early Modern

1830

Postal system: Governments establish organized postal services for the delivery of letters and packages.
   - Telegraph (1837): Samuel Morse develops the electromagnetic telegraph, enabling rapid long-distance communication using Morse code.
   - Semaphore system: Visual signaling using flags or lights, widely used in naval and military communications

Modern Era

1900

Internet (1960s - Present): The development of ARPANET, the precursor to the internet, leads to the interconnected global network we use today.
   - Mobile phones (1980s - Present): Mobile technology advances, leading to widespread adoption of smartphones and instant communication via calls, texts, and social media.
  - Social media (2000s - Present): Platforms like Facebook, Twitter, and Instagram revolutionize interpersonal communication and information dissemination on a global scalale.