PubMed · 3516604
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R J Gorlin, L Clift. 1986. Hemorrhoids.. https://doi.org/10.1007/bf02554137
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Around 600 BC, Daniel of Judah conducted what is widely regarded as the earliest recorded clinical trial. His trial compared the health effects of a vegetarian diet with those of a royal Babylonian diet over a 10-day period. The strengths of his study include the use of a contemporaneous control group, use of an independent assessor of outcome, and striking brevity in the published report. Weaknesses include probable selection bias, ascertainment bias, and confounding by divine intervention. Although Daniel probably never achieved tenure, he did get "learning and skill in all letters and wisdom ... and understanding in all visions and dreams" (well before Freud). Despite the trial's dramatic findings, over 4 centuries elapsed before publication of Daniel's results. Daniel apparently perished, then published.
The conversion of Saul to Paul was a major event in the history of Western culture. Compared with its impact, any medical comments may seem redundant, but they have kept their place in the literature for many centuries. The flashing light that caused Saul to fall is often explained as solar retinopathy or keratitis, a seizure, or even a hysterical fit. These interpretations propose either a trivial injury or disease that would interfere with mental health. Neither version is quite compatible with the dramatic dimension of the event and with Paul's later achievements and sufferings. In later years, Paul became a great manager, preacher and writer who was able to carry on under any kind of duress, though not without very painful reactions. He was suffering from bouts of unilateral headache, and also from a chronic eye condition which gave great trouble to his followers but did not cause lasting damage; the descriptions fulfil the criteria for migraine without aura of the 1988 Headache Classification. If the flashing light that caused Paul to fall down is interpreted as a visual migraine aura, with the additional symptoms of "not seeing" or photophobia and anorexia, it falls into place with his later history of migraine.
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