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Name ______Date______

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1792 1450 Mechanical Johann Gutenberg 1972 invents a printing is invented The first E-mail press using movable in France. are sent. metal type.

45,000 BC 1924 1990 Neanderthal man Pictures are first Tim Berners-Lee carves a picture transmitted over invents the World on a woolly lines. Wide Web. mammoth tooth.

3500 BC 1877 Sumerians record Thomas Edison pictographs representing 1963 invents the phonograph, words on clay tablets. First a device to record sound satellite is launched, on a wax cylinder. allowing worldwide live broadcast of the 1964 Olympics.

21st Century Challenges: Communications Inventions Great Moments in Communications © CyberSmart! Education. All rights reserved. Activity Sheet 1 of 3 Name ______Date______

450 Chinese invent printing by inking carved 1975 wood blocks. The personal 1884 computer, both First long distance small and powerful, phone calls are made. is invented.

1982 1830s The first cell phones Ada Byron, are available for sale. a mathematician, 900 BC writes the world’s first Chinese develop computer program for postal system to deliver a computing machine written messages. designed by Charles Babbage, but never built.

1876 Alexander Graham Bell invents the telephone, 105 transmitting the sound 1609 Chinese make of the voice clearly over Early newspapers paper from rags. electrical wires. are published in Germany.

21st Century Challenges: Communications Inventions Great Moments in Communications © CyberSmart! Education. All rights reserved. Activity Sheet 2 of 3 Name ______Date______

776 BC 900 1837 Homing Byzantine ship Samuel Morse pigeons captains use colored invents a telegraph carry flags to send signals that can send short messages to one another and long beeps, called about the across the water. “dots” and “dashes.” Olympics for Ancient Greeks.

1979 The first is used in an 1970 1901 E-mail message. The is Gugliermo Marconi invented by the sends the first radio U.S. government as across the a means of military Atlantic Ocean. .

1928 Very first few homes get television sets to watch 1993 broadcast programs. 1866 Marc Andreeson First successful creates the first transmissions over browser program, a transatlantic cable. allowing people to navigate the Web.

21st Century Challenges: Communications Inventions Great Moments in Communications © CyberSmart! Education. All rights reserved. Activity Sheet 3 of 3