symbol in Japanese. My Japanese dictionary calls it the Ha-kenkoroitsu. (from the German word Hakenkreuz, crooked cross) and it describes it at the 45-degree clockwise manji used by the Nazi party. That symbol is usually surrounded by a circle. In Japan. it is unusual to see the manji at that angle.
The first person to propose that magnesium was an element was Joseph Black of Edinburgh in 1755, and an impure form of metallic magnesium was produced in 1792 by Anton Rupprecht who heated magnesia (magnesium oxide, MgO) with charcoal. He named the element austrium after his native Austria.
Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele. The metal was first isolated in 1781 by Peter Jacob Hjelm.