When was the State Tretyakov Gallery founded?

The State Tretyakov Gallery is an art gallery in Moscow, Russia, the foremost depository of Russian fine art in the world.

The gallery's history starts in 1856 when the Moscow merchant Pavel Mikhailovich Tretyakov acquired works by Russian artists of his day with the aim of creating a collection, which might later grow into a museum of national art. In 1892, Tretyakov presented his already famous collection of approximately 2,000 works (1,362 paintings, 526 drawings, and 9 sculptures) to the Russian nation.

The collection contains more than 130,000 exhibits, ranging from Theotokos of Vladimir and Andrei Rublev's Trinity to the monumental Composition VII by Wassily Kandinsky and the Black Square by Kazimir Malevich.