Element 112 was synthesized in 1996 at the GSI in Darmstadt, Germany by Hofmann, et. al. Lead was bombarded with zinc atoms to achieve a mass total of 277. In July of 2009 the name "copernicium" and symbol "Cn" (in honor of Copernicus) were submitted to the IUPAC.
Stephen R. Marsden (ChemTopics)