 Kriaučiūnas had a manuscript of a Lithuanian–Polish dictionary with about 21,000 words from 1820 that we was annotating and correcting.The Lithuanian press ban was lifted in 1904 and the Russian Revolution of 1905 brought some relaxation of the various Russification policies.Kriaučiūnas was able to regain his teaching position at the Marijampolė Gymnasium in September 1906.