Radiocarbon dating placed the mummies between 1222 and 1282 CE, in the pre-Inca period. Tattoos on their hands, arms, and other body parts had faded over time, but the laser technique allowed ...

Highly detailed tattoos on Peruvian mummies were made with ... later absorbed by the Inca Empire”, researchers note in a study published in the journal PNAS on Monday. The new laser technique ...