Today is the 100th birthday of Louis Bernstein, American composer, conductor, author, music lecturer, and pianist.

Leonard Bernstein
Born	Louis Bernstein August 25, 1918 Lawrence, Massachusetts, U.S.
Died	October 14, 1990 (aged 72) New York City, New York, U.S.
Occupation	Composer, conductor, author, lecturer, pianist
Years active	1940–1990
Works	List of compositions
Spouse(s)	Felicia Montealegre (m. 1951; d. 1978)
Children	3
Signature

Leonard Bernstein August 25, 1918 – October 14, 1990) was an American composer, conductor, author, music lecturer, and pianist. He was among the first conductors born and educated in the US to receive worldwide acclaim. According to music critic Donal Henahan, he was "one of the most prodigiously talented and successful musicians in American history."

This is from Leanard Bernstein's West Side Story.