Or more on point, this book: https://press.princeton.edu/books/paperback/9780691183251/the-great-leveler https://press.princeton.edu/books/paperback/9780691183

Or more on point, this book: https://press.princeton.edu/books/paperback/9780691183251/the-great-leveler https://press.princeton.edu/books/paperback/9780691183251/th... " Are mass violence and catastrophes the only forces that can seriously decrease economic inequality? To judge by thousands of years of history, the answer is yes. "