Arsenic poisoning did not kill Napoleon in Saint Helena, as affirmed by a new meticulous examination. The examination produced some surprising results. There were no significant differences in arsenic levels between when Napoleon was a boy and during his final days in Saint Helena. Another surprising finding was that the level of arsenic in all of the hair samples from 200 years ago is 100 times greater than the average level detected in samples from persons living today. At the beginning of the 19th people evidently ingested arsenic that was present in the environment in quantities that are currently considered as dangerous.