Napoleon died in exile on May 05, 1821 on the island of Saint Helena off the coast of Africa. It was the British government that exiled him to the remote Island of Saint Helena in the South Atlantic. His death in 1821 at the age of 51 was received with shock and grief throughout Europe. In 1840, a million people witnessed his remains returning to Paris, where they still reside at Les Invalides.

The cause of Napoleon's death has been greatly debated. Some historians believe that he died of stomach cancer; other scholars state that his death was deliberately caused by arsenic poisoning. Now, studies that were published in 2007 and 2008 dismiss evidence of arsenic poisoning, and confirm evidence of peptic ulcer and gastric cancer as the cause of death.

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