Editing Comparative method (section)

===Neo-grammarian approach===
Similar discoveries made by the ''Junggrammatiker'' (usually translated as "[[Neogrammarians]]") at the [[University of Leipzig]] in the late 19th century led them to conclude that all sound changes were ultimately regular, resulting in the famous statement by [[Karl Brugmann]] and [[Hermann Osthoff]] in 1878 that "sound laws have no exceptions".<ref name=":0">{{harvnb|Szemerényi|1996|p=21}}.</ref> That idea is fundamental to the modern comparative method since it necessarily assumes regular correspondences between sounds in related languages and thus regular sound changes from the proto-language. The ''Neogrammarian hypothesis'' led to the application of the comparative method to reconstruct [[Proto-Indo-European language|Proto-Indo-European]] since [[Indo-European languages|Indo-European]] was then by far the most well-studied language family. Linguists working with other families soon followed suit, and the comparative method quickly became the established method for uncovering linguistic relationships.<ref name="ssix"/>