American Heart Association
The American Heart Association grew out of a set of smaller precursor groups. The primary precursor was the Association for the Prevention and Relief of Heart Disease, formed in New York City in 1915, to study whether patients with heart disease could safely return to work. Several similar organizations formed or evolved in Boston, Philadelphia, and Chicago in the 1920s. Recognizing the need for a national organization to share research and promote findings, the American Heart Association was formed in 1924 by six cardiologists representing several of these precursor groups.
Missouri College Athletic Union
The Missouri College Athletic Union (MCAU) was an intercollegiate athletic conference that existed from 1924 to 1970. It consisted primarily of private universities from the state of Missouri that departed the Missouri Intercollegiate Athletic Association after its 1924 reorganization. After folding in 1970, the MCAU's members formed the Heart of America Athletic Conference.