The following is an excerpt from a 1924 essay by H. L. Mencken. It seems relevant in light of the stupid quackery that’s killing hundreds of thousands.

Any lout with strong hands and arms is perfectly equipped to become a chiropractor. No education beyond the elements is necessary. The takings are often high, and so the profession has attracted thousands of recruits — retired baseball players, work-weary plumbers, truck-drivers, longshoremen, bogus dentists, dubious preachers, cashiered school superintendents. Now and then a quack of some other school — say homeopathy — plunges into it. Hundreds of promising students come from the intellectual ranks of hospital orderlies.

“Henry Louis Mencken (1880-1956) was a controversial American journalist, essayist and literary critic. During the 1920s, he became famous for his vitriolic attacks on what he considered to be the hypocrisy, stupidity, and bigotry of much of American life. For obvious reasons, his critics considered him highly skilled at satire but intolerant and often crude. This essay was published in the Baltimore Evening Sun in December 1924. Although the medical knowledge of his day was still quite primitive, Mencken knew enough to realize that chiropractic theory was preposterous.”