Symphony instruments, 19th century symphonies were gradually augmented with more string players and more wind parts, so that the orchestra grew substantially in sheer numbers, as concert halls likewise grew. At the beginning of the 20th century, Gustav Mahler wrote long, large-scale symphonies. His Eighth Symphony, for example, was composed in 1906 and is nicknamed the "Symphony of a Thousand" because of the large number of voices required to perform the work. Additionally, his Third Symphony is one of the longest regularly performed symphonies at around 100 minutes in length for most performances. The 20th century also saw further diversification in
Symphony No. 3 (Schumann) following his orchestral debut with his warmly-received First Symphony, composed in 1841 and premiered in Leipzig with Felix Mendelssohn conducting. The work which was later to be published as his Fourth Symphony was also finished in 1841. In 1845 he composed his C major Symphony, which was published in 1846 as No. 2, and, in 1850, his Third Symphony. By the end of his career Schumann had composed a total of four symphonies. The published numbering of the symphonies is not chronological because his Fourth Symphony of 1841 was not well received at its Leipzig premiere; Schumann withdrew the score