Laurian was a member of the Latinist School, a mainly-Transylvanian movement in the Romanian culture which promoted the idea that Romanians are pure Romans, whose history was a continuation of the history of the Roman Empire.
His book on History of the Romanians began with the Foundation of Rome in 753 BC and after the demise of Rome, it continues with the history of the Romanians, with all dates being converted to the Roman system, Ab urbe condita. As such, in his book it is written that Vladimirescu's rebellion occurred in the year 2574 AUC.
Because of this alleged continuity, he supported the purification of the Romanian language of non-Latin elements, trying to bring the language as closer to Latin as possible. Between 1871 and 1876, Laurian collaborated with Ioan Massim for a two-volume Romanian language dictionary, commissioned by the Romanian Academy. The dictionary was purified of non-Latin words, including neologisms as replacements for such words, which were supposed to be eliminated from the language. The dictionary was also written in an etymological spelling system, the result being an artificial language which only vaguely resembled Romanian and it provoked laughter, discrediting the Latinist school.