雅典的民主
古代雅典是第一个出现的民主。"人民来统治" 是关键。然而这当中不包括，儿童、妇女、奴隶和外国人。 作者：ZDF/Terra X/Gruppe 5/ Susanne Utzt, Cristina Trebbi/ Jens Boeck, Dieter Stürmer / Fabian Wienke / Sebastian Martinez/ xkopp, polloq 翻译和录音：alugha 点击链接观看更多视频: https://alugha.com/TerraX
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Formation of the Baltic Sea
20,000 years ago, the Baltic Sea region was still covered by a glacier. A change in climate caused the glacial ice to melt. The first form of the Baltic Sea emerged: a freshwater lake. Today, despite its connection to the North Sea, it is considered an inland sea. Author: ZDF/Terra X/Nina Zorn/Anna
