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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
54693
5241
2

feb 1, 1860 - Developed by Joseph Swan as light bulb filament

Added to timeline:

21 Sep 2017
0
0
149
Carbon fiber pt 2

Date:

feb 1, 1860
Now
~ 158 years ago
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