1. Child Prodigy: Felix Mendelssohn was a musical prodigy, composing his first symphony at the age of 12. By his teenage years, he had already written some of his most famous works, including the Overture to "A Midsummer Night's Dream" at the age of 17.

2. Revival of Bach’s Music: Mendelssohn was instrumental in the 19th-century revival of Johann Sebastian Bach’s music. In 1829, he conducted a landmark performance of Bach's "St. Matthew Passion" in Berlin, which sparked renewed interest in Bach’s works across Europe.

3. Founder of the Leipzig Conservatory: In 1843, Mendelssohn founded the Leipzig Conservatory, Germany's first music conservatory. He attracted prominent musicians and composers to teach there, including Robert Schumann and Ignaz Moscheles, establishing it as a leading institution for musical education.

4. Extensive Travel and Influence: Mendelssohn traveled extensively throughout Europe, drawing inspiration from the places he visited. His travels influenced many of his compositions, such as the "Scottish Symphony" and the "Italian Symphony," which capture the essence of the landscapes and cultures he experienced.

5. Innovative Composer and Conductor: Mendelssohn was not only a prolific composer but also an innovative conductor. He was one of the first conductors to use a baton and helped to shape modern conducting techniques. His clear and expressive conducting style set new standards for orchestral performances.