Upon her return to the United States, Handler reworked the design of the doll (with help from engineer Jack Ryan) and the doll was given a new name, Barbie, after Handler's daughter Barbara. The doll made its debut at the American International Toy Fair in New York on March 9, 1959.pon her return to the United States, Handler reworked the design of the doll (with help from engineer Jack Ryan) and the doll was given a new name, Barbie, after Handler's daughter Barbara. The doll made its debut at the American International Toy Fair in New York on March 9, 1959.
The mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale-to-normal, brass-yellow hue have earned it the nickname fool's gold because of its resemblance to gold.
Best Answer: Aside from the naturally occurring FeS2 which is called pyrite, the compound would have the chemical name iron (II) persulfide. The iron and sulfur atoms in FeS2 are arranged as Fe-S-S rather than S-Fe-S. The S2^2- is the persulfide, and is the analog of peroxide, O2^2-.