Warnings from history reverberate through time – the New England Journal of Medicine is currently running a series of special articles examining the biases and injustices that the journal has historically helped to perpetuate, and which now with hindsight should bear critical analysis. The first in this series is ‘Nazism and the Journal’, which makes for uncomfortable reading. Times may have changed, but the past exists to remind us not to make the same mistakes again. https://www.nejm.org/doi/full/10.1056/NEJMp2307319