They are not "discovered" but built.
It was Discovered
zheng he discovered a lolipop land
j.l.abbott discovered the Aztecs 400 years ago
loincloths
Metal wasn't made it was discovered.
Gold was discovered! www.allfreebiesforyou.com
The first metal discovered by man was gold and it was mainly used for decoration purpose.
Ponys
Potassium was not the first metal to be discovered. It was first isolated by Sir Humphry Davy in 1807 through the electrolysis of caustic potash (potassium hydroxide). The discovery of other metals preceded potassium, such as copper, iron, and lead.
COPPER
albert enistein
Ununoctium
He discovered that frogs legs convulsed when touched by metal that was charged by electricity.
Well, I do know Gustav and Robert did discovered the Alkaki metal cesium in 1860 but im not sure about the whole Alkaki metal family.........
gold
Antoine Laovoisier , prit