Today is 19th, February, 09 and here’s what happened today in tech..

1 - On 19th, Feb, 1878 – The phonograph is patented by Thomas Edison.

2 – Today in 1985, Artificial heart recipient William J. Schroeder becomes the first such patient to leave hospital.

3 - NASA’s Mars Odyssey space probe begins to map the surface of Mars using its thermal emission imaging system on 19th, Feb, 2002.