Glen T. Seaborg was an American chemist born on April 19, 1912, in Ishpeming, Michigan. He is best known for his work in nuclear chemistry and for co-discovering ten elements, including plutonium and americium. Seaborg's research significantly advanced the understanding of the actinide series in the periodic table. In 1951, he was awarded the Nobel Prize in Chemistry for his contributions to the field. Seaborg also played a key role in the development of the atomic bomb during World War II as part of the Manhattan Project. He served as the chairman of the U.S. Atomic Energy Commission from 1961 to 1971.