The Bronze Age was a period of time which began when people started making things from bronze about 4,000–6,000 years ago.
N-PROPER : the N
The Bronze Age was a period of time which began when people started making things from bronze about 4,000–6,000 years ago.
N-PROPER : the N
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006