The text is dated from linguistic evidence to the 12th century.
In 1919 the same two authors published their linguistic evidence for the proposal.
Many theories have been produced from literary and linguistic evidence.
There is some linguistic evidence for an earlier origin within the seventh century.
They assumed a connection, but did not seek linguistic evidence.
There is no genetic or linguistic evidence for earlier contact along this route.
Their migration is indicated by linguistic, cultural and genetic evidence.
Such linguistic evidence established early inhabitants were in the south of the island since the first millennium.
Since its publication, this system has been discredited, and current linguistic evidence now points to two separate language systems.
"Only linguistic evidence is relevant in drawing conclusions about classification."