Today is 20th June, 09 and here’s what happened today in tech…

1 – 1877 Alexander Graham Bell installed the world’s first commercial telephone service in Hamilton, Ontario and Canada.

2 - 1963 The so-called “red telephone” was established between the Soviet Union and the United States following the Cuban Missile Crisis, and..

3 – 1939 a test flight of first rocket plane took place using liquid propellants.