«History of the historical and comparative Indo-European linguistics» – the course of the optional part of the masterʼs program «Comparative-historical Indo-European linguistics», developed at the Department of General and comparative linguistics of the Philological Faculty of Lomonosov Moscow State University. This course is intended for the 1st year undergraduates in the first semester. «History of the historical and comparative Indo-European linguistics» – is an important component of the program of theoretical training masters to direction of comparative and historical linguistics. The course provides students an opportunity to acquaint with the main trends of development of the linguistic research of XIX and XX centuries – comparativist, with the basic methods of comparative-historical linguistics.