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 discoverer the right to suggest a name. This recommendation was not adopted, following protests from the German discoverers, and the name hassium (Hs) was adopted internationally in 1997. In 1964 the only European nuclear-powered civilian ship, the freighter "NS Otto Hahn", was named in his honor. In 1959 there were the opening ceremonies of the Otto Hahn Institute in Mainz and the Hahn-Meitner-Institut "for Nuclear Research" (HMI) in Berlin. There are craters on Mars and the Moon, and the asteroid No. "19126 Ottohahn" named in his honor, as were the Otto Hahn Prize of both the German Chemical and Physical