Benjamin Franklin announced his invention of bifocal eyeglasses.
Source
Louis Timothee became America's first paid librarian.
Carl J.E. Eliason, from Sayner, Wisconsin, was awarded his patent for the 'motor toboggan,' the world's first motorized snow vehicle.
George Hancock, who invented softball, played the first match in Chicago.
Arthur Schawlow & Charles Townes was granted the first patent for a laser.
A patent was awarded to Willis Carrier, which gave us the world’s first Air Conditioner.
