books.google.com.hk - In the imaginations of early Americans, the Middle Kingdom was the wealthiest empire in the world. Its geographical distance did not deter commercial aspirations—rather, it inspired them. Starting in the late eighteenth century, merchants from New York, Philadelphia, Boston, Salem, Newport, and elsewhere...https://books.google.com.hk/books/about/The_New_Middle_Kingdom.html?hl=zh-TW&id=QWFgDgAAQBAJ&utm_source=gb-gplus-shareThe New Middle Kingdom
