Generally used to refer to the four major ancient civilization of ancient Babylon, ancient Egypt, ancient China, ancient India, the earliest human civilization, the birth of the four areas.

四大文明古国一般用来指代古巴比伦、古埃及、古代中国、古印度等四个人类文明最早诞生的地区。

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Iraq -- a cradle of ancient civilization -- is the home of such fabled cities such as Ur, Babylon, Kabala and Nineveh.

CNN: Experts fear for Iraq's archaeological treasure