Abstract
Knowledge is “an island surrounded by a sea of ignorance. As our island of knowledge grows, so does the shore of our ignorance.”— John Archibald WheelerIt is ironic that the more we learn about a subject, the more questions arise. Clinical cardiac electrophysiology came into being in the 1960s as technologies became available to study arrhythmia mechanism in humans. The field exploded with worldwide interest in the 1970s. The established body of knowledge became large enough that, in 1992, the American Board of Internal Medicine (ABIM) offered the first ever certification examination of “Added Qualification” within an established subspecialty (Cardiovascular Diseases) in Clinical Cardiac Electrophysiology.
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