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Period: 2400 BCE to
Postal System/ Letters
Letters were delivered by foot.
In 1837 a British schoolteacher named Rowland Hill came up with the idea of postal stamps, this created the postal system.
Now we deliver letters by land, air, and sea. -
Period: to
Morse Code
Morse Code was created by Samual Morse in the 1830s.
It is still used today. -
Period: to
Telegraph
The telegraph was created by Samual Morse in the 1830s.
It was most used during World War ll.
It stopped being used in 2006. -
Telephone
Alexander Graham Bell created the telephone.
Thomas Edison took credit for it. -
Period: to
Radio
In 1895 Nikola Tesla was the first to start publicly experimenting with radio frequencies and transmissions.
In 1897 he got a patent for his invention.
In 1916 the first long radio broadcasted from Tufts University. -
Conference Calls
Bell Labs first developed a rough draft or version in 1956.
Picturephone included a small screen connected to the phone. -
Video Games
William Higinbotham created what was thought to be the first video game, it was a simple tennis game.
Video Games are still played today. -
Cell Phones
1970s- Martin Cooper began working on portable communication devices.
1973- he developed a large, clunky prototype referred to as “the brick’. -
Email
Email was invented by Bolt Beranelc and Newman at ARPANET, but Ray Tomlinson is credited for it. -
Smart Phones
The first smart phone was called the Simon Personal Communicator and it was created by IBM.
It was created more than 15 years before Apple released the iPhone. -
Social Networks
The first web browsers were distributed using Usenet.
Usenet was created by Jim Ellis and Tom Truscott.
Social Networks are still used today.
