The European Center for Studies in Ethnic Issues, through the European Center for Covasna-Harghita Studies, together with the “Metropolitan Nicolae Colan” Ecclesiastical Documentation Center, organized the symposium “Romanians in the Inner Carpathian Arc and the Union of the Romanian Principalities,” at the headquarters of the “Metropolitan Nicolae Colan” Ecclesiastical Documentation Center in Sfântu Gheorghe, on January 23, 2025. The event, dedicated to marking the Union of the Romanian Principalities of January 24, 1859, included papers delivered by Dr. Ioan Lăcătușu, Erich Mihail Broanăr, Dr. Magdalena Albu, doctoral candidate Florentina Teacă, engineer Ciprian Hugianu, and doctoral candidate Tatiana Scurtu.