1868
ID: 964
Bell invents telephone concept through mathematical understanding of sound transmission
ID: 964
1868
ID: 965
BASF (Badische Anilin- und Soda-Fabrik) founded in Baden, later joins German Empire
ID: 965
1868
ID: 4267
June 23, 1868
Sholes, Glidden, and Soule receive U.S. Patent 79,265 for 'Type-Writer' - foundation of modern typing
ID: 4267