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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
1847322
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feb 7, 1920 - AM (amplitude modulation) radio takes off

Description:

This happens throughout the 1920s

Added to timeline:

8 months ago
0
0
95
MIxtapeAnatomyTimeline

Date:

feb 7, 1920
Now
~ 99 years ago
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