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30,000 BCE
Cave Paintings
Is the oldest method of communication commonly used to marka territories. They were found in walls and ceilings -
4000 BCE
Carrier Pigeons
As a method of communication, it is likely as old as the ancient Persians who trainned birds to carry messages from one place to another. The Romans used pigeon messengers to aid their military over 2000 years ago. -
900 BCE
Smoke Signals
Mostly used in China, the Chinese guards released smoke into the air and the smoke is decoded as a message. -
Newspaper
These papers deliver written news and also other important national events taking place. Two types of Newspapers are National and International. Their types depend upon the news they deliver about. The first printing press system was introduced in 1440 by German Johannes Gutenberg. The first printed newspapers were published weekly in Germany from 1605. -
Postal System
With raising awareness, people started to use courier services. Letters were delivered from one person to another through postal services. These systems were organized in India, China, Persia, and Rome. A Frenchman De Valyer started a postal system in 1653. The use of mailboxes and delivery of letters was done through the system. -
Telegraph
professor Samuel Morse began working on his version of the telegraph in 1832; he developed Morse Code in 1835; and by 1838 he had presented his concept to the U.S. Congress. -
Telephone
The first telephone was introduced by Alexander Graham Bell in 1876. Within 50 years of its invention, telephones became an essential part of every household and office. The devices transmitted human audio into signals. These signals were then transmitted through wires. Landline telephone service began in 1900s. It was the most reliable form of the communication system. Mobile phones were introduced in 1973 and the mode of communication was changed entirely. -
Radios
With the advent of Print Media, Radios were introduced after that. Radios are a source of news as well as entertainment for people. Wireless signals were studied and tested in detail. The scientists practiced using wireless power to share content. -
Television
1940s and 1950s is when television first arrived to the market. Even today, Televisions are a great source of entertainment. They are a mode of indirect communication to the larger audience. -
Internet
The world of the Web has brought people closer. Tim Berners-Lee invented the World Wide Web in 1990. Satellites support the internet. Through the internet, we can search for anything, anywhere in the whole world. Wireless connections via Wi-Fi began in 1991. -
Bibliography