first made in 1984. It was made at the
Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. The team that made darmstadtium was led by Peter Armbruster and Gottfried Münzenberg.
The element was named from the
Latin name for the German state of Hessen. Hessen is the state that the Gesellschaft für Schwerionenforschung is in.
Before it was named Hassium scientists could not decide what the name should be. There was an
element naming controversy. The temporary IUPAC
systematic element name was unniloctium. The symbol with the name was Uno. In 1994 a committee of IUPAC recommended that element 108 be named hahnium. The name hassium was adopted internationally in 1997.