Today at Lesya Ukrainka Volyn State University, a presentation of the scholarly collection "The Pereiaslav Council of 1654 (Historiography and Research)" took place. \n \nThe book highlights the issues of the Ukrainian-Muscovite agreement concluded as a result of the January-March 1654 negotiations between Bohdan Khmelnytsky and the Muscovite Tsar Alexei Mikhailovich. The first part of this book contains reprints of works from Ukrainian historiography and publicistic writing of the last quarter of the 19th century through the 1970s. Its second part contains scholarly research by contemporary historians, reviews of Ukrainian, Russian, Polish, and English-language historiography, and articles about the Pereiaslav Council, its causes and consequences. \n \nThe purpose of publishing the book is to revive sources that were "behind the scenes of history," that were silenced, distorted, or banned, as well as to eradicate the incorrect perception of relations between Russia and Ukraine at that time. The publication of the collection was carried out within the framework of commemorating the 350th anniversary of the Pereiaslav Council, in accordance with the corresponding Decree of the President of Ukraine. \n \nThe publication was carried out by the National Academy of Sciences of Ukraine jointly with the Institute of Ukrainian Archeography and Source Studies, the Shevchenko Scientific Society in America, and the Canadian Institute of Ukrainian Studies. The editor-in-chief of the book is the director of the Institute of Ukrainian Archeography and Source Studies, Doctor of Historical Sciences, Corresponding Member of the National Academy of Sciences of Ukraine, Pavlo Sokhan. \n \nAn international scholarly conference with the participation of Ukrainian and Russian historians is planned to be held soon, at which scholars would express their vision of the issues surrounding the Pereiaslav Council.