The Library's first significant acquisition was the collection of Joachim Nicolaus von Dessin, who bequeathed his books to the Dutch Reformed Church in 1761 to serve as the foundation of a public library. In 1820 the board of trustees decided to donate the Dessinian Collection to the new library. Other notable donations followed over the years, among others Sir George Grey who when he left South Africa in 1861 presented the Library with his remarkable personal collection of medieval and Renaissance manuscripts and rare books. In 1873 the South African Public Library became a legal deposit library for the Cape Colony, and from 1916 it received all printed items published throughout the country. The Library continued as a legal deposit library until 1954, when this function was taken over by the City of Cape Town. From then on it began to develop its unique character as a national reference library devoted to research based on its extensive stock, with a concurrent name change in 1967 to the South African Library.