Complex sentence: The International Chiropractor's Association (ICA), is certainly the oldest Chiropractic association in the profession, having been founded by B.J. Palmer, in 1938 in Davenport, IA He served as their President until his death in 1961.
Split into simpler sentences: The International Chiropractor's Association (ICA), is certainly the oldest Chiropractic association in the profession, having been founded by B.J. Palmer, in 1938 in Davenport, IA. Palmer served as their President until his death in 1961.