Original sentence: He first publicly demonstrated it on October 26 1861.He is generally regarded as the true inventor of the telephone and was acknowledged as such by both Alexander Graham Bell (who admitted that he drew upon Reis's 1861 device in constructing his phone) and Thomas Edison.Johann Philipp Reis (January 7, 1834 – January 14, 1874) was a self-taught German scientist and inventor of Jewish ancestry, who in 1860-1861 constructed the first telephone, today called the Reis telephone
Edited sentence: He first publicly demonstrated it on October 26, 1861.Johann Philipp Reis (January 7, 1834 – January 14, 1874) was a self-taught German scientist and inventor, who in 1860-1861 constructed an early telephone, today called the Reis telephone