How did Einstein come to the Conclusion of Spacetime?

TimeInquirer
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What led Albert Einstein to conclude that space and time were not two separate entities but merely one spacetime. Also, has there been experiment to prove this notion?
 
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TimeInquirer said:
What led Albert Einstein to conclude that space and time were not two separate entities but merely one spacetime.
It was Hermann Minkowski:
http://en.wikipedia.org/wiki/Hermann_Minkowski#Work_on_relativity

TimeInquirer said:
Also, has there been experiment to prove this notion?
It's just a geometrical interpretation of Special Relativity, not a theory on it's own that makes testable predictions.
 
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