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Period: 500 BCE to 401 BCE
Pigeons messenger
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Period: to
Telegraph
https://www.google.com.ph/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiNq9HW0PnUAhXIwbwKHfZuBNgQjRwIBw&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FTelegraphy&psig=AFQjCNHxqXf2Z6fWLAhmmfZ-JTH7egT7dQ&ust=1499601395874128
An instrument that transmit the writings to a distant place. -
Period: to
Electric Telegraph
https://www.google.com.ph/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi64v-n0fnUAhVHx7wKHb3gAYwQjRwIBw&url=http%3A%2F%2Fw1tp.com%2Fim3500.htm&psig=AFQjCNHmDKoaxfqyg61rUdjx5MgzgdwxLA&ust=1499601560622775
An apparatus for communication at a distance by coded signals; especially : an apparatus, system, or process for communication at a distance by electric transmission over wire -
Period: to
Typewriter
https://www.google.com.ph/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjul6zI2fnUAhVGOrwKHVmCDX0QjRwIBw&url=http%3A%2F%2Fsaltofamerica.com%2Fcontents%2FdisplayArticle.aspx%3F19_229&psig=AFQjCNGshVzdNnZ8e_fyKZdXYo09UUUOjQ&ust=1499603776956819
The first typewriter to be commercially successful was invented in 1868 by Americans Christopher Latham Sholes, Frank Haven Hall, Carlos Glidden and Samuel W. Soule in Milwaukee, Wisconsin. -
Period: to
Modern Typewriter
https://www.google.com.ph/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjzwp-23PnUAhVGTbwKHXrfDvkQjRwIBw&url=https%3A%2F%2Fmandyevebarnett.com%2Ftag%2Ftypewriter%2F&psig=AFQjCNFzVOzxolOO0QWAcSSThPVuko-B9Q&ust=1499604525399440
An electric, electronic, or manual machine with keys for producing printlike characters one at a time on paper inserted around a roller. -
Period: to
Telephone
https://www.google.com.ph/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjom6H13fnUAhVHjLwKHaDTAocQjRwIBw&url=https%3A%2F%2Fwww.pinterest.pt%2Fpin%2F516365913508223371%2F&psig=AFQjCNHZ-cY1T4yQoqktl_jUHBOfThbf1Q&ust=1499604833253836
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.