In one particularly embarrassing example, in 1994, a diabetes care journal published an article which described a novel method for estimating the total area und

In one particularly embarrassing example, in 1994, a diabetes care journal published an article which described a novel method for estimating the total area under a metabolic curve: https://care.diabetesjournals.org/content/17/2/152 https://care.diabetesjournals.org/content/17/2/152 (PDF: https://math.berkeley.edu/~ehallman/math1B/TaisMethod.pdf https://math.berkeley.edu/~ehallman/math1B/TaisMethod.pdf) It wasn't until some months later that a response pointed out that the author had rediscovered the trapezoidal method, which was known to Newton and is typically covered in precalculus courses. https://care.diabetesjournals.org/content/17/10/1224 https://care.diabetesjournals.org/content/17/10/1224