Neanderthals are named after the valley, the Neandertal, in which the first identified specimen was found. The valley was spelled "Neanderthal" and the species was spelled "Neanderthaler" in German until the spelling reform of 1901. The spelling "Neandertal" for the species is occasionally seen in English, even in scientific publications, but the scientific name, "H. neanderthalensis", is always spelled with "th" according to the principle of priority. The vernacular name of the species in German is always "Neandertaler" ("inhabitant of the Neander Valley"), whereas "Neandertal" always refers to the valley. The valley itself was named after the late 17th century German theologian and hymn writer Joachim Neander, who often visited the area. "Neanderthal" can be pronounced using the (as in ) or the standard English pronunciation of "th" with the fricative /θ/ (as ).