In 1826, Niépce used his heliography process to capture the first photograph, but his pioneering work was soon to be overshadowed by the invention of the daguerreotype. Joseph Nicéphore Niépce was one of the most important figures in the invention of photography.
The twelve-tone system of composition was invented by Arnold Schoenberg. The twelve-tone technique is a term referring to a type of musical composition that came to replace the old basis of tonality and contribute a new musical structure. This technique involves the use of tone rows, ensuring that all twelve notes are heard without any emphasis on a specific note.
