The key metal of history has been

Question

Quizplus · Accepted Answer

While all of the metals listed have played significant roles in history, iron stands out as the key metal due to its widespread use in weapons, machinery, and infrastructure. Ironworking was a major technological breakthrough and was responsible for the establishment of many ancient empires, such as Rome and China. Furthermore, the Industrial Revolution was driven by innovations in iron and steel production, which transformed transportation and manufacturing during the 19th century.

The Key Metal of History Has Been