Glenn Theodore Seaborg was a chemist who worked at the University of California Berkeley and played a role in the Manhattan Project. In 1948 he helped isolating the element plutonium. He also helped discovering americum, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium and seaborgium. In 1951 he and Edwin McMillan (neptunium) were given the Nobel Prize in Chemistry. He introduced the concept of actinide elements in the Periodic Table of Elements. He was a member of the Bohemian Club (worship of owls) and the Cosmos Club. He was chairman of the US Atomic Energy Commission from 1961 to 1971 with Leland Hayward (NSF) .