The most recent of the Big Five is the most familiar one—the cataclysm that ended the Age of Dinosaurs.

这些大灭绝中最近的一次也是人们最熟悉的一次，终结了恐龙时代。

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The dramatic turn of events was prompted by the cataclysm of losses that has shaken the American financial industry over the last 14 months.

过去14个月中美国金融业不断的失利加速了这一突发事件的发生。

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And yet we shouldn't have needed the cataclysm to live life today.

然而，本不该需要灾难来提醒我们过好今天的生活。

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It was the West's obsession then with appeasement that set the world on course for the cataclysm of World War II.

CENTERFORSECURITYPOLICY: A low and dishonest decade

The more pessimistic tend to see analogies with the early 20th Century, after the Boer War and before the cataclysm of 1914, and it is true there are similarities with the British debate about decline during that period and the current American introspection.

BBC: Is the United States an empire in decline?

If the cataclysm of the first world war had destroyed any belief in the immutability of a civilisation based on liberal, progressive British values, the origins of the morbid age can also be found in developments in the natural and social sciences that occurred well before 1914.

ECONOMIST: Britain between the wars