व्हिच इन्वेंशन रिकॉर्डेड एस द फर्स्ट टेक्नोलॉजिकल रिसर्च इंस्टीट्यूट इन दिल्ली फॉर अर्ली मैनWhich invention is regarded as the first technology revolution?What change did about in the early man
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A technological revolution is a period in which one or more technologies is replaced by another, novel technology in a short amount of time.
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