GMP "the Isaakiyevsky cathedral - 90 years

In 2021 the State museum-memorial "St. Isaac's Cathedral" celebrates 90 years from the date of opening. it is considered to be birthday of museum on April 12, 1931. This day, to be exact, in the night of April 12, in St. Isaac's Cathedral solemn demonstration of experience of Foucault the State Antireligious museum opened. This date became an important milestone not only in the history of museum, but also in the history of the cathedral as outstanding architectural monument. It is possible to study the historical magazine according to the reference: https://history.cathedral.ru/B it are reflected all important events and actions from museum-memorial life...