Pr?m?t?y?m k? kp?l? kp?l?k?? t? p?t? weyi ?-n?? maya? k?y? 61 n? y?sa? n?ŋa y? Pm. ? n? t?k?n?s?y?m , ?k? p?t? naa naal? taa n?y? mba p?f?y? yuŋ ?z? p?s?m?t?, mba p?f?y?na ?i??i? agbele naa. P?t? ?n? ?w? caz? caz? ?ja?? taa.

P?t? ?n? ?-h??? l?na promethee, p?k? kr?k? p?p?t? t?m k??alat? nat?y? nd? p?t?ŋ se t?m?la miŋ k? ?s? naa c?l?. Paalak?-? n? t?m?y? na??y? p?tas?na m?nt?s?ŋ t?m?y? p?l?na ?-t? c?kas? t??? y??. Palaba-? n? t?m?y? ?z? p?t? weyi ?k? fefeku p?y? k? Systems Nuclear Auxiliary Powers n?m?? taa n? ???? palab?-? n? t?m?y? nam?y? s?z?y? ?e?e.

Bohuslav Brauner kaay??da pr?m?t?y?m w?? t?m ?ooo p?na? 1902 . ?laka?a t?m?y? k?t??a? t?t? naa y?? se ?paz? ?t?l? t?-w?t? piŋ l?, ?na t?ka? s?s? nakay? n?y?d?m? n? samar?y?m h?k? taa kak?l? lantan?d? p?t?naa lalaa mba paan?t?na kp?y? y?. P?-t? ?oziye t?m nd? Henry Moseley tas? saz?? t?-y?? p?na? 1914 , ?n? weyi p?t?naa ca?y? kp?l?k?? n?m?? taa l? ?na se p?t? n?y? taaf?y?na n?? maya? 61.

Posusa kajala? nat? takaya? l? Italii ?yaa lab?na t?m?y? n?? mba y? Luigi Rolla n? Florence Fernande t? Lorenzo. ?t?ma t?? t?d?m n?m?ŋ l?m mb? k?k? Preesiili t? monasiti y? p?t?ŋna ??mp?y? k?maŋ t?y?? y??, mb? l? ?na l?m nab?y? p?-taa n? samar?y?m. L?m mb? p?c?l? m?nt?s?? c?ŋga X ŋga k?k? samar?y?m n?ŋa n? 61 p?t? y?.

P?sa n? p??? h??? p?-t? t?t? l?, paya p?t? 61 ?n? se fl?r?ns?y?m. ???? p?k?ma p?na? 1926 w?? taa l?, l??t? t?naa nabay? k? Illinois sukuli k?t?z?? ŋg? k?w? Urbana-Champaign t?t? taa y?, Smith Hopkins n? Len Yntema posusi p?t? 61 nat? t?m. Paya-? se ?l?n?y?m p?l?na p?-t? sukuli k?t?z?? h??? y??.