Aaron Copland was an influential American composer, born on November 14, 1900, in Brooklyn, New York. He is best known for his contributions to classical music, particularly in the early to mid-20th century. Copland's works often incorporate elements of American folk music, which helped define a distinctly American sound in classical music. Throughout his career, Copland composed notable pieces such as Appalachian Spring, Fanfare for the Common Man, and Rodeo. He also worked as a conductor and music educator, promoting contemporary music. His style evolved over time, blending modernist techniques with accessible melodies, making his music popular among a wide audience.