Dubnium not have enough experimental data to back their claim. After collecting more data, JINR proposed the name "nielsbohrium" (Ns) in honor of the Danish nuclear physicist Niels Bohr, a founder of the theories of atomic structure and quantum theory. When LBL first announced their synthesis of element 105, they proposed that the new element be named "hahnium" (Ha) after the German chemist Otto Hahn, the "father of nuclear chemistry", thus creating an element naming controversy. In the early 1970s, both teams reported synthesis of the next element, element 106, but did not suggest names. JINR suggested establishing an international committee
Otto Hahn in all Warsaw pact states. In January 1958, Otto Hahn, together with his friend Albert Schweitzer signed the Pauling Appeal to the United Nations in New York for the "immediate conclusion of an international agreement to stop the testing of nuclear weapons". In October, together with Clement Attlee, Edgar Faure, Tetsu Katayama, et al. he signed the international "Agreement to call a meeting to draw up a world constitution". Since 1958, Hahn was sending messages to the annual conferences of the recently founded "Japan Council Against A and H Bombs" in Tokyo. In 1960, for instance, he wrote to president