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may 1, 1902 - Willis Carrier invents the air conditioner. French physicist George Claude invents neon light. The lie detector or polygraph machine is invented by James Mackenzie. The birth of the Teddy Bear. George Claude invented neon light.

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WH timeline pt 2

Bygabe
27 Sep 2021
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Date:

may 1, 1902
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~ 124 years ago
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