LTReikšminiai žodžiai: Jonas Šliavas; Juozas Šliavas; Kraštotyra; Žiemgaliai; Jonas Sliavas; Juozas Šliavas; Lore; Semigallians.
ENDuring all his active local lore studies and etnographical social activities period J. Šliavas (1930-1979) gathered folklore, accumulated ethnographical data, investigated the Semigallian land history, analysed the historical and cultural Lithuanian and Latvian border ties. His road to local lore studies began in the autumn of 1958 when pupils brought to the school some archaeological finds found in Žeimelis. That stimulated J. Šliavas to get interested in the local people customs, history, religion. The solidarity of Lithuanians and Latvians was an old idealism that had many supporters since the second half of the 19th century both in Latvia and Lithuania. J. Jančevskis, E. Rozenberga-Aspazija, A. Pumpuras, J. Rainis, Subradu Edžus and other Latvian classics gave sense to this both Baltic peoples solidarity idea in artistic works, fostered it in their cultural activities. The Lithuanian literary people and culture activists raised similar ideas. The Latvians admired Lithuania’s historical past, Latvia’s new culture and economy achievements were imposant to the Lithuanians. J. Šliavas’ works become especially important and urgent in this context, he pays much attention to the ties between Lithuania and Latvia, to their development. He was interested in these Baltic peoples archaeology, history, ethnography, linquistics, mythology, local lore studies. Maybe J. Šliavas was the first from the Lithuanian folklorists who investigated the Semigallian ethnic culture on such a wide scale. He was as if a Semigallian chronicler who generalized his gathered data in his scholarly and scientific works, he prepared 18 volumes of them, though many of them remained in manuscripts. [...]. [From the publication]