Gutenburg first invented printing that used separate metal letters.
No one invented metal. Metals are naturally occurring elements in the earths crust (and core)
William Jenney
It was first invented in 13th century CE when Iron and Charcoal were blended correctly.
Pretty much Black Sabbath invented Metal. Which first song, I don't exactly know.
Reaper Maybe the metal plow
duby the 3rd
1852
Friedrich Jahn invented gymnastics and the first person to get a gold medal was Nadia Comaneci
He invente d the metal tools in that cebtury first
the metal detector was invented because people in old days use to use it so they could find stuff in there body I think
It was made in Tokyo and it was released in Canada in 2009