> interchangeable parts I don't understand why you are protesting. Romans already had interchangeable parts. Evidence of the use of interchangeable parts can

> interchangeable parts I don't understand why you are protesting. Romans already had interchangeable parts. Evidence of the use of interchangeable parts can be traced back over two thousand years to Carthage in the First Punic War. Carthaginian ships had standardized, interchangeable parts that even came with assembly instructions akin to "tab A into slot B" marked on them. > why early industry did not need rail or waterway to carry heavy logistics you are conflating two arguments. Ancient civilizations became large empires without railways. Some of them built giant pyramids in the middle of the desert...