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
Red-violet English was in 1590. "Blush" has been a Crayola color since 1998. It was originally called "cranberry" but in 2005 the name was changed to "blush". Displayed at the right is the color smitten. "Smitten" is one of the colors on the Resene Color List, a color list widely popular in Australia and New Zealand. The color "smitten" was formulated in 2011. Medium red-violet is the medium tone of the color red-violet that is called "red-violet" in Crayola crayons. "Red-violet" has been a Crayola color since 1930. Displayed at the right is the color fandango. The first recorded use of