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Jonas Jablonskis (1830–1903) was a famous Lithuanian linguist who standardised the Lithuanian language (1901). His works are very significant for the Lithuanian language in all fields (spelling, phonetics, morphology, syntax and lexicon). He created a number of language rules, including the rules of spelling on the basis of a living language and created new words, which are still in use.
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The first conference devoted to Jonas Jablonskis was held in 1993 by the Department of Language Culture at the Institute of the Lithuanian Language and the Department of the Lithuanian Language at Vilnius University. Since then, this conference has become a tradition and takes place every autumn. Until 2003 it was held at Vilnius University, with the exception of the fourth conference organized in Marijampolė. Since 2003 it has been hosted by Vilnius University and the Institute of the Lithuanian Language; the place changes every year. In 2005, 2009 and 2010 the conference had an international status. In 2011 the conference did not take place; and after establishing the Department of Standard Lithuanian Language at the Institute of the Lithuanian Language in 2012, it was renewed and alternately organized by both institutions. In 2016 international scientific conference Meaning in language and culture devoted to Jonas Jablonskis focused on semantics, a field least stressed by J. Jablonskis. The 24th International Jonas Jablonskis Conference Digital Language Resources, Directions of Their Development and Possibilities to Harness Them took the place at the Institute of the Lithuanian Language on 29 September 2017. The goal of the conference was to discuss the problems that arise when language meets digital technology in the process of developing digital resources and building a common digital market.
The 25th international scientific conference of Jonas Jablonskis Variation in languages and their varieties was held on September 27–28, 2018 at the Faculty of Philology of Vilnius University, Universiteto St 5, LT-01513 Vilnius.
The 26th international conference of Jonas Jablonskis Linguistic Diversity in the Modern World: Language Power and Prestige was held on October 3–4, 2019 at the Institute of the Lithuanian Language. More than 60 scientists from 15 countries came to give their presentations on the following topics: linguistic diversity in language(s) and dialect(s) or language communities; adaptation and standardization of language(s); relationship between standard and non-standard or regional varieties of the language(s); actualities and challenges in language policies, ideologies, and practices; dynamics of language(s) power and prestige, and other aspects related with linguistic diversity and language prestige.