Commemorating the150th Anniversary of the American Institute of Architects Commemoration of the 75th anniversary of the Convention of Paris commemorating the 60th anniversary of Shengyang's liberation commemorating the 100th anniversary of Guan Shanyue's birth Commemorating the 50th anniversary of the establishment of the Dunhuang Academy commemorating the 30th anniversary of reform and opening-up Commemorating the 50th annnersary of the est ablishment of the Dunhuang Academy Commemorating the 20th Anniversary of Beijing Forum: selected keynotes commemorating the 60th anniversary of Tibet's democratic reform in commemoration of the 70th anniversary of the world's first computer eniac