Since his discovery on 19 December 1991 by German hikers, Ötzi has provided window into early human history.
His mummified remains were uncovered in melting glacier in the mountainous border between Austria and Italy.
Analysis of the body has told us that he was alive during the Copper Age and died a grisly death.
Ötzi, who was 46 at the time of his death, had brown eyes, relatives in Sardinia, and was lactose intolerant.
Experts discovered a total of 61 tattoos on Ötzi's body using different wavelengths of light to pick them out on the mummy's darkened skin.
And in December 2015 they were confirmed to be the world's oldest - beating markings on an unidentified South American Chinchorro mummy.
Experts had thought the South American