Only a question....more likely to be surgery?
In some parts of Africa, knife cuts were made on the newborn child’s face by the grandmother as a tribal marking right after birth.
Don’t think so, looks like an accident to me. As I said a wide scar, wider than a sharp blade, such as a scalpal would make. OTH, I don’t know how they make an incision in a skull, other than drilling holes in it and using a type of saw to cut between holes.