Totally tangent: One of my favorite nitpicks (some others are use of two spaces before a period, the Oxford comma, and the idea that light slows down in a medium) is that the Rosetta Stone is not trilingual: the two texts is Ancient Egyptian use different characters - Hieroglyphs and Demotic. The former is a stilted form mimicking Middle Egyptian while the latter would be accessible to more people.

So the two are not word for word same but are not different languages either.

For a true trilingual inscription that also helped with decipherment, see https://en.m.wikipedia.org/wiki/Behistun_Inscription