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Period: 2000 BCE to
Carrier pigeon
Genghis Khan invented Carrier pigeon and It´s still used in Odish, northeastern India. -
Period: 310 BCE to
Message in a bottle
Greek philosopher Theophrastus invented Message in a bottle in 310BC and Some scientists and oceanographers still use messages in bottles to study global currents. -
Period: to
Tin-can phone
Robert Hooke invented Tin-can phone in 1664 and we still used today to learn about sound and vibration. -
Period: to
Morse code
Samuel Morse and Alfred Vali invented morse code in 1837 and International Morse Code is still used by U.S Navy intelligence specialists. -
Period: to
Postcard
Dr. Heinrich von Stephen invented postcard in 1865 and only 18% of population still use them. -
Period: to
Cell phone and mobile phone
Martin Cooper invented cell phones and mobile phones in 1928 and and we still use them. -
Period: to
Floppy disc
Alan Shugart invented Floppy disc and the Floppy disc is still used for Airplanes like Boeing, Medical equiment and embroidery machines. -
Period: to
Email
Ray Tomlinson invented Email in 1971 and we still use that. -
Period: to
Tablet
Alan Kay invented tablet and More than a half of population still use tablets.