The Hippocratic Oath is a historical commitment made by medical practitioners to uphold ethical standards in their practice, attributed to Hippocrates and thought to date back to the 5th century BC. The oath emphasizes respect for teachers, prioritizing patients' interests, and maintaining confidentiality while aiming to prevent harm and injustice to patients. Despite common belief, the phrase "first do no harm" does not literally appear in the oath, but embodies its principles, and consequences for breaking the oath have evolved from severe historical penalties to modern malpractice implications.