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 the Prussian Minister of Culture and Education August von Trott zu Solz and, in 1912, he became head of the Radioactivity Department of the newly founded Kaiser Wilhelm Institute for Chemistry in Berlin-Dahlem (today 'Hahn-Meitner-Building' of the Free University, Berlin, Thielallee 63). Succeeding Alfred Stock, Hahn was director of the institute from 1928 to 1946. In 1924, Hahn was elected to full membership of the Prussian Academy of Sciences in Berlin (proposed by Albert Einstein, Max Planck, Fritz Haber, Wilhelm Schlenk, and Max von Laue). In June 1911, while attending a conference in Stettin (today Szczecin, Poland) Otto Hahn met