mendelevium
... that the discoverers of mendelevium had to seek the permission of the United States government to propose it be named after Russian chemist Dmitri Mendeleev, father of the periodic table?
... that the discoverers of <b id="mwBLM"><a href="./Mendelevium" id="mwBLQ" rel="mw:WikiLink" title="Mendelevium">mendelevium</a></b> had to seek the permission of the United States government to propose it be named after Russian chemist <a href="./Dmitri_Mendeleev" id="mwBLU" rel="mw:WikiLink" title="Dmitri Mendeleev">Dmitri Mendeleev</a>, father of the <a href="./Periodic_table" id="mwBLY" rel="mw:WikiLink" title="Periodic table">periodic table</a>?