The Vernadsky State Geological Museum is the oldest museum in Moscow It was founded in 1755 and is now an…
Platon Oyunskiy (Russian: Платон Ойунский; 11 November 1893 — 31 October 1939), pseudonym of Platon Alekseevich Sleptsov (Платон Алексеевич Слепцов)…