The National Library of Russia in St Petersburg (known as the Imperial Public Library from 1795 to 1917; Russian Public Library from 1917 to 1925; State Public Library from 1925 to 1992 (since 1932 named after M.Saltykov-Shchedrin); NLR), is not only the oldest public library in the nation, but also the first national library in the country. The NLR is currently ranked among the world’s major libraries. It has the second richest library collection in the Russian Federation, a treasury of national heritage, and is the All-Russian Information, Research and Cultural Center. The modern building for the book depository was erected on Moskovsky Prospekt in the 1980s and 1990s.