Question: Are both Arthur Isiko and Domingos Soares Ferreira Penna from the same country?
Sentence (from "Domingos Soares Ferreira Penna"): In three letters published by the National Museum( 1876 a, 1876 b, 1877), recorded his observations on the shell mounds installed in the dark and swampy regions on the east coast of Para, which he excavated, measured, and mapped, making notes on their condition, conservation, and archeological conditions- human bones, lithic and ceramic artefacts- describing them and locating them in their stratigraphic layers.
Relevant evidence: No