 In 1997, he established the American Fund for the Tate Gallery with an endowment generated by a gift of AIG shares.In creating a fund that would respond to the Tate's wish to strengthen its American collection, he was giving expression both to his affection for his birthplace and to his enthusiasm for his adopted country.By 2005, the fund was worth $30m, and made possible the acquisition of major works by Robert Motherwell, Philip Guston, Donald Judd, David Smith, Louise Bourgeois, Ellsworth Kelly, Bruce Nauman and Cildo Meireles.