doi:10.7916/d8-zca9-gh85Certificate of Appreciation for Carnegie CorporationSmithsonian Institutionlegal documentstextCharitable uses, trusts, and foundationsArtsCarnegie Corporation of New YorkCarnegie Corporation of New York donated the Carnegie Mansion and property to the Smithsonian Institution in 1972, and the modern incarnation of the Cooper-Hewitt National Design Museum opened there in 1976.