Chemical element named mendelevium in honor of D.I. Mendeleev, the first to arrange the elements in a periodic manner. Most recently, the synthesis of element 118 (since named oganesson) was reported in October 2006, and the synthesis of element 117 (tennessine) was reported in April 2010. Ten materials familiar to various prehistoric cultures are now known to be chemical elements: Carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and zinc. Three additional materials now accepted as elements, arsenic, antimony, and bismuth, were recognized as distinct substances prior to 1500 AD. Phosphorus, cobalt, and platinum were isolated before 1750. Most of the
Black or White skit that precedes the album version of the song. Slash did, however, play the main riff during live performances of the song. To prepare the audience for the special occasion of the televised premiere of the "Black or White" video, Epic records released the song (without the accompanying images) to radio stations just two days in advance. In a period of twenty-four hours, "Black or White", described by the record company as "a rock 'n' roll dance song about racial harmony", had been added to the playlists of 96 percent of 237 of the United States of America's top forty