In 1857, he co-founded the
Związek Trojnicki ("Triple Society"), named after the three Polish territories acquired by Russia in the 18th century:
Volhynia,
Podilia and the
Kyiv area. The society's goal was promoting the abolition of serfdom and persuading the peasants to support Polish independence, while preparing the members for their role in the planned all-national uprising. Due to his involvement, Antonowicz became one of the prominent examples of the "
peasant-lovers" (or "
Reds"), a loose group of young artists and liberal thinkers fascinated with the peasantry as the "core of the nation". However, when the
January Uprising finally started, the Society divided. Antonowicz, highly critical of the bourgeoisie and the
szlachta, sided with the lower classes and left the society, instead forming a
Ukrainian society called the
Kyiv Community (Київська громада). The conflict between Antonowicz and his university colleagues was further aggravated by the conflict over the
Polish language. While most democratic societies decided to appeal to the
tsar and ask for the Polish language to be promoted to the status of language of instruction, Antonowicz ultimately opposed those plans. This conflict further strengthened Antonowicz's pro-Ukrainian stance on one side, and the animosity between him and his colleagues on the other, to the extent that he was considered a "renegade" by some. In 1861 he changed his name to its
Ukrainized form and converted to the Orthodox faith, common among the peasants living around Kyiv, as opposed to the Catholicism of the higher class of local society He also married Varvara Ivanovna Mikhels, and started to teach
Latin in the 1st Kyiv Gymnasium. During that time, Antonovych was under investigation for traveling with Tadei Rylskyi around Ukrainian villages. == Career ==