American Heart Association
The American Heart Association (AHA) is a non-profit organization in the United States that funds cardiovascular medical research, educates consumers on healthy living and fosters appropriate cardiac care in an effort to reduce disability and deaths caused by cardiovascular disease and stroke. Originally formed in New York City in 1924 as the Association for the Prevention and Relief of Heart Disease, it is currently headquartered in Dallas, Texas. The American Heart Association is a national voluntary health agency.
American Historical Association
The American Historical Association (AHA) is the oldest and largest society of historians and professors of history in the United States. Founded in 1884, the association promotes historical studies, the teaching of history, and the preservation of and access to historical materials. It publishes "The American Historical Review" five times a year, with scholarly articles and book reviews. The AHA is the major organization for historians working in the United States, while the Organization of American Historians is the major organization for historians who study and teach about the United States.