Thomas Alva Edison on this day (19-Feb) in the year 1878, patented his first invention Phonograph which he invented in the year 1877...
Popularly known as "The Wizard of Menlo Park", Edison used tinfoil around the grooved cylinder in his Phonograph instead of wax-coated cardboard cylinders...
The centenary of Sound recording / Phonograph was commemorated by India Post with the release of a 2-rupees postage stamp in the year 1977...
This stamp can be collected under the themes:
(a) Inventions...
(b) Scientists...
(c) Sound / Music...
(d) Science and Technology...
(e) Anniversaries...
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