1892 ⟶ John Froelich Builds First Gasoline-Powered Tractor
John Froelich develops and constructs the first gasoline/pet...
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1902
🔒 Linus Yale Sr. Designs the Pin Tumbler Lock
Linus Yale Sr. invents the first modern pin tumbler lock.⟶
SecurityIndustrial RevolutionMechanical Engineering
United States🪢 Lucien B. Smith Invents Barbed Wire
Lucien B. Smith invents barbed wire, which Joseph F. Glidden will modify in 1874, leading to the taming of the West and the end of the cowboys.⟶
American WestAgricultureIndustrial RevolutionFrontier
United States👖 Invention of Blue Jeans and Barbed Wire
Blue jeans and barbed wire are invented.⟶
InventionsIndustrial RevolutionWestward ExpansionAgricultureMaterial Culture
United States🖊️ John J. Loud Patents the Ballpoint Pen
🚜 John Froelich Builds First Gasoline-Powered Tractor
John Froelich develops and constructs the first gasoline/petrol-powered tractor.⟶
AgricultureMechanical EngineeringIndustrial Revolution
United States❄️ Willis Carrier Patents Modern Air Conditioning
July 17: Willis Carrier invents the first modern electrical air conditioning unit.⟶
Industrial Revolution
United States