Time Period in Which Humans Began Using Metals

This page is the CodyCross answer for the clue below from Cruise Ship, Group 649, Puzzle 4 (Minigolfing).

Question is: Time Period in Which Humans Began Using Metals

and the answer is: BRONZEAGE

Word Meaning:

BRONZE AGE — Alternative letter-case form of Bronze Age.

Definitions from Wiktionary.