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In prehistory, humans communicated mainly through body language and gestures. Over time, they began to develop simple pictograms to represent basic objects and concepts on cave walls and clay tablets. -
In Mesopotamia, cuneiform writing developed, one of the first known forms of writing. It was carved on clay tablets in a wedge-shaped style of writing. -
The Phoenicians develop a sound-based alphabetic writing system, which served as the basis for many later writing systems, including Greek, Latin, and Hebrew. -
Johannes Gutenberg invents the movable type printing press in Europe, which revolutionizes communication by allowing the mass production of books and pamphlets. -
Samuel Morse invents the electric telegraph and develops Morse code, which allows rapid transmission of messages over long distances via telegraph cables. -
Alexander Graham Bell patents the telephone, allowing real-time voice communication at a distance over telephone lines. -
Guglielmo Marconi made the first successful radio transmissions, inaugurating the era of radio broadcasting and allowing the transmission of sound over long distances without cables. -
Philo Farnsworth demonstrates a fully functional electronic television system, laying the foundation for the development of modern television. -
The emergence of ARPANET, a precursor to the Internet, in the 1960s and the creation of the World Wide Web by Tim Berners-Lee in the 1980s, revolutionized communication by allowing the instantaneous exchange of information on a global scale. -
The rise of platforms such as Facebook, Twitter, Instagram and LinkedIn has transformed communication, allowing people to connect, share information and collaborate online quickly and easily.