**Iceman.it — Iceman research milestones.** [iceman.it/en/?p=13094](https://iceman.it/en/?p=13094). Official museum research chronology.
**Gizmodo (2023).** [gizmodo.com/genetic-analysis-of-otzi-the-iceman-reveals-ancient-m-1850742750](https://gizmodo.com/genetic-analysis-of-otzi-the-iceman-reveals-ancient-m-1850742750). Two iliac bone samples used; ten times less contamination; Krause quote.
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## The Tattoos: A Medical Record Written on Skin
Of all the physical features documented on Ötzi’s body, the tattoos are among the most debated and most revealing. He had sixty-one tattoos arranged in nineteen groups across his body, making him the carrier of the oldest tattooed body yet found in Europe — and one of the oldest tattooed individuals documented anywhere in the world.
The tattoos are unlike most modern tattoos in both their method and their placement. They were not made with needles but by cutting or puncturing the skin and rubbing pigment — almost certainly carbon-based, from fireplace ash or soot — into the wound. Under analysis, the pigment particles were found deep in the dermis, the deeper skin layer, consistent with intentional placement rather than accidental injury. The technique is different from the more complex needle methods used in many ancient tattooing traditions, but the result was permanent — the marks survived five thousand years of ice preservation.
The placement is what makes the tattoos scientifically interesting. Groups of parallel lines, typically horizontal, appear across Ötzi’s lower back, behind his right knee, on his left wrist, on his right ankle and both feet, and on his lower left leg. Nine of the nineteen groups sit in locations that correspond precisely to classical acupuncture points as defined in traditional Chinese medicine. This alignment is not trivial: the correlation is specific enough that researchers have proposed the tattoos may have been applied for therapeutic rather than decorative purposes.