New York Public Library Main Branch - Astor and Tilden Collections

The New York Public Library's Main Branch on Fifth Avenue opened in 1911 and consolidated earlier collections, including the Astor Library (founded from John Jacob Astor's bequest) and the Tilden Trust (from Samuel J. Tilden). The building was designed as a major public research library and remains a landmarked institution with extensive research holdings. Its establishment reflects the philanthropic legacies of those historical figures in creating New York's public research library system.