Although Prichard is primarily known today for his important anthropological work, his reputation as a philologist is unjustly overshadowed. This work was the first to show the Indo-European origin of the Celtic languages, and preceded the work of Adolphe Pictet, which made his reputation on a treatise on the same point.

Reprint of the original, first published in 1857. The publishing house Anatiposi publishes historical books as reprints. Due to their age, these books may have missing pages or inferior quality. Our aim is to preserve these books and make them available to the public so that they do not get lost.