-also this
-child prodigy in French Republic with language
-becomes very very interested in Irish and Gaelic culture with the rise of Celtomania
-in the aftermath of War of the French Revolution (1792-1804) > Great Irish Rebellion (1796-9) and subsequent French savants going there to gain scholarship
-becomes leading member of French Celtic studies
-definitively disproves James McPherson's Ossian fraud with his immense knowledge
-does a lot of work on Gaulish language exploration
-and publishes very influential grammar of the Gaulish language
-and is part of an effort to excavate and translate Gaulish documents
-does a massive amount of research on Manx as well
-and prints a grammar of the language and all
-becomes chair of Celtic studies at University of Grenoble