Bakır çağı

== Turkish == === Etymology === By surface analysis, bakır (“copper”) +‎ çağ (“era, epoch; age”). === Noun === Bakır çağı (definite accusative Bakır çağını, uncountable) (archaeology) Copper Age, Eneolithic, Chalcolithic Synonym: kalkolitik çağ ==== Declension ==== === Further reading === Çağbayır, Yaşar (2007), “bakır1”, in Ötüken Türkçe Sözlük (in Turkish), volume 1, Istanbul: Ötüken Neşriyat, page 443