Italian opera revisited, history was retold and imagination was stimulated. The strength of it fell into a more violent era for opera: verismo, with "Cavalleria rusticana" by Pietro Mascagni and "Pagliacci" by Ruggero Leoncavallo. Some of the greatest Italian operas of the 20th century were written by Giacomo Puccini (1858–1924). These include "Manon Lescaut", "La bohème", "Tosca", "Madama Butterfly", "La fanciulla del West", "La rondine" and "Turandot", the last two being left unfinished. In 1926 and in 2002 Franco Alfano and Luciano Berio respectively attempted a completion of "Turandot", and in 1994 Lorenzo Ferrero completed the orchestration of the third version of
Giacomo Puccini the top ten works performed, and Puccini ranks third (behind Verdi and Mozart) in the number of performances of his operas over all. Gustav Kobbé, the original author of "The Complete Opera Book", a standard reference work on opera, wrote in the 1919 edition: "Puccini is considered the most important figure in operatic Italy today, the successor of Verdi, if there is any." Other contemporaries shared this view. Italian opera composers of the generation with whom Puccini was compared included Pietro Mascagni (1863–1945), Ruggero Leoncavallo (1857–1919), Umberto Giordano (1867–1948), Francesco Cilea (1866–1950), Baron Pierantonio Tasca (1858–1934), Gaetano Coronaro (1852–1908), and