The paper overviews the 21st International Scientific Conference “St. Petersburg and the Nordic Countries”. The spring meeting of Scandinavian researchers has become a traditional event and one of the most reputable conferences in the history of the Nordic countries. The participants of the conference, which embraced five sections, managed to discuss many issues faced by the historical science. The researchers announced their latest developments in the field of source study and historiography of Northern Europe, the socio-economic development of the Scandinavian countries, the political confrontation in the Baltic region and other major issues of the history of Northern Europe.