Title: Obʺedini︠a︡i︠a︡ narody
Subjects: Exhibitions, Russian Painting, Treaty on the Protection of Artistic and Scientific Institutions and Historic Monuments, Treaty on the Protection of Artistic and Scientific Institutions and Historic Monuments (1935 April 15)
People: George Roerich, Nicholas Roerich (1874-1947), S. N. Rerikh
Time periods: 20th century