Ordained a Catholic priest in 1887, he joined the Capuchins, under the name of Father Hilaire, on 2 August 1889 and lectured in Turkey.
Back in France, he taught science, philosophy and dogmatic theology.
Albeit intriguing to the ear, they are no longer considered worthy of deeper scholarly scrutiny in most of contemporary linguistic research centres and communities.
[1] They were popular among Turkish nationalists under Atatürk in the 1930s:[2] the Sun Language Theory (Güneş Dil Teorisi), based on L'origine des langues, des religions et des peuples, claimed that all languages were derived from a common Central Asian root, a paleontological "proto-language" that can be established only hypothetically.
Not only the Turkic languages, spoken in Central Asia and Turkey today, but also the Maya (in Mesoamerica) and the extinct Sumerian (as seen on tablets excavated in Mesopotamia, in the Middle East) would be related.