The Roseau 'rune' stone is a golf ball-sized stone encircled with a ring of markings. The stone was found near Roseau, Minnesota, between 1916-1918 and was thought by some to contain Viking runic ...
According to their recent study published in the Journal of Ancient History and Archeology, the book-sized artifact excavated in 2021 features 60 etched symbols, 39 of which differ from one another.