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April 1, 2024
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Created by
Abbigale Brunk
⟶ Updated 4 Sep 2018 ⟶
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Events
Morse Code
Bessemer Process
Typerwriter
Railroad Telegrph
Central Power Station
Refrigerator
Alternation Current
Light Bulb
Air Brakes
Imporved Light Bulb Filament
Time Zones
Telephone
Phonograph
Electric Sewing Machine
Transfomer