大象视频完整版视频

　　What do the rise and fall of the Roman Empire, the Thirty Years’ War and the Renaissance have in common? For one, they were all starkly affected by extreme weather conditions. Indeed, if we take a fresh look at human history in the light of Earth’s volatile climate, we can expose hidden parallels, draw surprising conclusions and explain bizarre historical conundrums. 　　This two-p... (展开全部)