The article reviews the beginnings and evolution of organized studies in history of sciences in the Baltics. Due to the efforts of Prof. Pauls StradiĦš (1896—1958), Latvian medical scientist and founder of the Museum of History of Medicine in Riga, the first Baltic Conference on History of Natural Sciences and Medicine was held in Riga on June 6-7, 1958. The participants in this first conference from Lithuanian side were Prof. Slavenas, V. Girdzijauskas, S. Biziulevičus and from Estonian side – V. Kalnins and K.Villako. A joint Baltic Coordination Commission on History of Sciences was founded, which functioned officially until 1965, later –within the framework of Soviet National Association of History of Natural Sciences and Technology (as a member of IUHPS), which included Estonian, Latvian and Lithuanian branches (in fact , separate national associations). The Association was founded in May, 1958 (Chairmen: Prof. P. Valeskalns, 1958-1987, Prof. J. StradiĦš – since 1987). The Estonian Association was headed by Prof. F. Klement, the Lithuanian Association - by Prof. P. Slavenas. Since 1958 conferences on the history of sciences have become a tradition. During 50 years 23 conferences have been held in Tartu, Vilnius, Kaunas, Tallinn, Riga, Jelgava and Jūrmala (15 conferences - before the regaining of independence). In October 1990 in Riga the Association of History and Philosophy of Sciences of the Baltic States was founded (Co-presidents: from Lithuania - Prof. J. A. Krikštopaitis, from Latvia – Prof. J. StradiĦš, from Estonia – Prof. K. Siilivask, till 2006, Prof. J. Aaviksoo, since 2006). From 4—6 October, 1991 the 16th Conference took place in Vilnius which was the first conference of scientists of independent Baltic States. 8 more conferences were organized, 9 - with the participation of historians of science from Germany, Finland, Poland, Russia, Ukraine, USA, Great Britain, Japan, Belgium, France, Byelorus etc., and they have 26 become a traditional element of Baltic cooperation. The future of these conferences as well as the issue of a lingua franca have been discussed.