Glenn Seaborg McNeese8 By MsBradley Apr 19, 1912 Glenn Seaborg He was born i n London. Apr 19, 1912 Glenn Seaborg This is when Glenn was born. Sep 19, 1938 Transuranium Glenn discovered Transmrnium element. Feb 7, 1940 Plutonium Glenn Seaborg dicovered Plutonium. Mar 17, 1950 Californum Glenn Seaborg disocvered Californium Oct 9, 1999 Arranging the Periodc Table He contributed by arranging the perodic table.
