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12 h, jan 1, 1600 y - Air Conditioned Top Hat

Description:

The Victorians were early wearable tech pioneers, and also quite sweaty, resulting in this patent for an air conditioned top hat.

Added to timeline:

8 Dec 2017
0
0
819

Date:

12 h, jan 1, 1600 y
Now
~ 426 years ago

Images: