Eliakim Hastings Moore was an American mathematician and educator known for his contributions to the field of mathematics in the late 19th and early 20th centuries. He was particularly recognized for his work in geometry and for his role in advancing mathematical education during his time. Moore served as a professor at several institutions, including the University of Chicago, where he influenced many students and fellow mathematicians. He was also involved in the development of the American Mathematical Society, helping to shape the future of mathematics in the United States.