Born in 1844, Rimsky-Korsakov studied the piano as a child but chose a naval career, entering the College of Naval Cadets in St. Petersburg in 1856. However, he continued with piano lessons; in fact, in 1859, Rimsky-Korsakov started working with the French pianist Theodore Canille, through whom he met Balakirev, an important mentor and friend. In 1862, after graduating form the naval school, Rimsky-Korsakov was at sea for two and a half years, devoting his free time to composition. Upon Rimsky-Korsakov's return to St. Petersburg, in 1865, Balakirev conducted his friend's First Symphony, which was hailed as the first important symphonic work by a Russian composer. Rimsky-Korsakov was appointed professor of composition and orchestration at the St. Petersburg Conservatory in 1871. The following year, he married Nadezhda Purgold, a pianist. In 1873, Rimsky-Korsakov left active duty, becoming inspector of navy orchestras, a job which he held until 1884.