Ikhnaton >Ikhnaton (reigned 1379-1362 B.C.) was the tenth pharaoh of the Eighteenth >Dynasty of Egypt. His reign was marked by the flourishing of the worship of >Aten and by numerous uprisings.
William Kelly was an American ironmaster who invented the pneumatic process of steelmaking, in which air is blown through molten pig iron to oxidize and remove unwanted impurities. Also patented by Sir Henry Bessemer of Great Britain, this process produced the first inexpensive steel, which became
Carl Wilhelm Scheele, German Swedish chemist who independently discovered oxygen, chlorine, and manganese. His most important discovery was of oxygen, which was also discovered independently and simultaneously by the English clergyman and scientist Joseph Priestley.