Evolution of technology

1. Timeline of
communication
By: Austin, Rachel, Raena, Smriti, Farrah,
Bernice, Ben and Isaac

2. 6th century BCE: Mail
522-489 BC: Phoenician alphabet
● A language in the Persian civil service called the
Phoenician alphabet was developed.
● It is known as the most significant development of
history of writing.
12th century: Pigeon Post
● This form of communication uses homing pigeons to
carry messages

3. 1520: Firing cannons
● Ships on Ferdinand Magellan’s voyage signal to each other
by fire cannons
1672: Acoustic (mechanical) telephones
● Acoustic telephones are also known as ‘string’ telephones
as it works on the ‘two tin-cans on a string’ principal

4. 1835: Samuel Morse makes the Morse code
● This is a method transmitting text information through a
series of on-off tones, lights or clicks
● It was a popular form of communication
amongst amateur radio operators
1843: Samuel Morse makes the first long distance
electric telegraph line

5. 1876: Alexander Graham Bell + Thomas Watson exhibit
an electric telephone (Boston)
● This is the starting point of electronic communications
● This allowed the general public to contact and
communicate with their friends/family
1877: Thomas Edison patents the phonograph
● An early sound-reproducing machine that used
cylinders to record as well as produce sound

6. 1920: The first radio broadcast is made
● The Radio station KDKA began the first broadcast
● This gave people the opportunity to listen to discussions
about current affairs.
1925: John Logie Baird transmits the first television
signal
● People could finally watch television, beginning the era
of the telecommunication.

7. 1947: Douglas Ring and W. Rae Young of
Bell Labs propose a cell base research
method which eventually led to cellular
phones
The first handheld mobile cell phone was
demonstrated by Motorola in 1973
1963: First communication satellite is launched

8. 1976: First personal computer (PC) is created (Apple 1)

9. Late 1980s and Early 1990s: internet created

10. 2003: Myspace is launched
2005: Youtube is launched
2006: Messages are sent faster than ever before on a site
“Twitter”

11. How did this change the way we
interact?