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Feb 8, 1445
Guttenburg PrintingPress
The inventor was Bi Sheng . -
Alphabet
The history of the alphabet started in ancient Egypt. -
sedition act
an Act of the United States Congress that extended the Espionage Act of 1917 to cover a broader range of offenses, notably speech -
Telegraph
Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. -
Telephone
Scottish emigrant Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice. -
first transatlantic cable
Cyrus West Field and the Atlantic Telegraph Company were behind the construction of the first transatlantic telegraph cable -
first radio network linkup
De Forest set up transmitter at foot of the Eiffel Tower and gave a demonstration . -
Compter
The first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait -
Rise of FM radio
During the 1930s, there were a small number of experimental (known as "Apex") stations attempting to broadcast high fidelity audio using wide-bandwidth AM on VHF frequencies. In 1937 W1XOJ was the first FM radio station, granted a construction permit by the Federal Communications Commission (FCC). On June 17, 1936, FM radio was demonstrated to the FCC for the first time -
rise of fm radio
Station owners began to allow rock music on these frequencies. “Free-form” or “underground” FM radio began to spread the word on -
Email
Ray Tomlinson is generally credited as having sent the first email across a network, -
Online
global computer neywork uses standrdized communican protocals -
HBO
In 2014, HBO had an adjusted operating income of US$1.79 billion, compared to the US$1.68 billion it accrued in 2013. -
hbo is uplinked to satellite
It is delivering television programming using signals relayed from space radio stations -
color tv
At that time, two competing color mechanisms were being championed -
rise of cellphones
In the last 20 years, the use of mobile devices has grown rapidly across the world, but different countries and regions have had varying rates of adoption. -
olympic games on tv
The VIII Olympic Winter Games, was the first to be in tv -
Ideogram
a written character symbolizing the idea of a thing without indicating the sounds used to say it, e.g., numerals and Chinese characterized
