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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
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jan 10, 1898 - Valdemar Poulsen invents the first magnetice recording.

Added to timeline:

4 months ago
0
0
143
film, broadcast,video ,etc

Date:

jan 10, 1898
Now
~ 120 years ago
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