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Horace Mann School (also known as Horace Mann or HM) is a private, independent college-preparatory school in the Bronx, founded in 1887. Horace Mann is a member of the Ivy Preparatory School League, educating students from the New York metropolitan area from nursery school to the twelfth grade. The Upper, Middle, and Lower Divisions are located in Riverdale, a neighborhood of the Bronx, while the Nursery School is located in Manhattan.

The 1989 firebombing of the Riverdale Press was an attack in which two firebombs were thrown at the offices of a weekly newspaper, the Riverdale Press, in the Riverdale community of the Bronx, New York City on February 28, 1989. The building was heavily damaged. Two California bookstores were also damaged in similar attacks.