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May 28, 1400
Printing Press
The history of the printing press dates back to the 1400s, when Johannes Guternberg created a model based on primitive versions already in use.His printing press used removable metal letters that could be rearranged to create blocks of text. -
Letter
Writing a letter is a form of communication that has persisted way back as 1800s by 1837, a British schoolteacher named Rowland Hill came up with the idea of postage stamps, and this gave birth to postal system. -
Morse Code and the Telegraph
Samuel Moarse developed a system of communicating through this machine. It was known as Morse code and consisted of a series of coded dots and dashes that corresponded with the alphabet. -
Telephone
However in 1876, one man, Alexander Graham Bell, did succeed legally by securing a patent for his version of the telephone.Later, the phone evolved into a device where the listener had to hold one piece to their ear and speak into the main phone unit. -
Radio
In 1897 Nikola Tesla who first started publicly experimenting with radio frequencies and transmission.e first long radio broadcast only came in 1916, from Tufts University. -
Television
It was a Scottish man named John Logie Baird who was successful in showing moving images on a screen in 1925. Baird’s invention was quite slow, showing only about twelve frames per minute, but it was remarkable nonetheless. s. The first TV images were halftones, and then black and white, before color was finally introduced in 1953. -
Cell Phone
In the 1970s, a researcher at Motorola named Martin Cooper began working on portable communication devices. In 1973, he developed a type of mobile phone. It was a large, clunky prototype, now colloquially referred to as “the brick” for its awkward size and shape. -
Email
. It was a computer network called ARPANET that largely contributed to the development of email. In 1971, the first email was sent by Ray Tomlinson, an American programmer
