Large-scale slavery existed prior to the European colonizers. Look at the history of Rome, Greece, Egypt, China, India. Ancient Rome and Greece had fully slave-

Large-scale slavery existed prior to the European colonizers. Look at the history of Rome, Greece, Egypt, China, India. Ancient Rome and Greece had fully slave-based economies, more or less so depending on when and where you look. Over time the process got more efficient in economic terms, "industrialized" as you call it, but slavery existed almost everywhere, in many forms, as far back as we have records, and of course still goes on. For example, see https://en.wikipedia.org/wiki/Slavery_among_Native_Americans_in_the_United_States https://en.wikipedia.org/wiki/Slavery_among_Native_Americans...