Origins of the Euphrates River Possibly Discovered
Margherita Bassi, Smithsonian Around 6,000 years ago, the world's earliest known civilization arose in
数千年来，人类一直凝视着夜空寻找答案。 Ancient civilizations believed knowledge descended from the heavens.先知警告说，天空中的迹象可能会欺骗整个国家。总统们承诺披露信息，然后又陷入沉默。军事飞行员报告了他们无法解释的遭遇。国会召开听证会。宗教领袖提供了解释。 [...]
