Today in History 1-1877 – Thomas Edison announces his invention of the phonograph, a machine that can record and play sound. 2-1905 – Albert Einstein's paper that leads to the mass–energy equivalence formula, E = mc², is published in the journal Annalen der Physik. 3-World Television Day (United Nations observance) Voice and written by Azhar Niaz Producer Azhar Niaz #azharniaz
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