Beautiful. Thanks for sharing. It's not made BCE though. It's from 11th century CE. The Wikipedia page seems inconsistent between 11th and 12th centuries, but it's certainly not three thousand years old :-) See https://en.m.wikipedia.org/wiki/Uppland_Runic_Inscription_871 for more info.
I'm working on a new major mode with Tree Sitter highlighting and articles by Mickey Petersen are incredibly useful.