On May 5, 1821, Napoleon spent his last moments on Saint Helena Island. Amidst a storm, the former ruler of Europe uttered his final words: "France... army... commander... Josephine..." He passed away on May 6. Various theories have emerged regarding the cause of his death. Some believe it was due to natural causes, while others suspect he may have been poisoned. In the early 20th century, Swedish dentist Sten Forshufvud discovered high levels of arsenic in Napoleon's hair, suggesting the poisoning theory. However, some scholars argue that the arsenic could have originated from wallpaper or medications he was taking. To this day, the cause of Napoleon's death remains an unsolved mystery in history.