The Bronze Age is a historical period that was characterized by the use of bronze, and in some areas proto-writing, and other early features of urban civilization.
This app is develop for education and research purpose with fair use law is apply under creative common license and does not violate the policy about Google-served ads on screens with replicated content .Fair use is a doctrine law that permits limited use of copyrighted material without having to first acquire permission from the copyright holder for education and research purpose .