Einstein’s theory of special relativity published. It transforms the nature of modern physical knowledge.

Russian Revolution creates the first successful, long-term revolutionary state.

End of the First World War. The Habsburg and Ottoman empires collapse; maps of Europe and the Middle East are redrawn.

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Question	Answer
1905	Einstein’s theory of special relativity published. It transforms the nature of modern physical knowledge.
1917	Russian Revolution creates the first successful, long-term revolutionary state.
1918	End of the First World War. The Habsburg and Ottoman empires collapse; maps of Europe and the Middle East are redrawn.