The person who wrote the music for the original Russian romantic ballet "Swan Lake" was born in what year?
Swan Lake (Bourne):  The story is based on the Russian romantic ballet "Swan Lake", from which it takes the music by Tchaikovsky and the broad outline of the plot. Pyotr Ilyich Tchaikovsky: Pyotr Ilyich Tchaikovsky ( ; Russian: Пётр Ильи́ч Чайко́вский ; 25 April/7 May 1840 – 25 October/6 November 1893), often anglicized as Peter Ilich Tchaikovsky, was a Russian composer of the romantic period, some of whose works are among the most popular music in the classical repertoire.
1840