Nurhaci Builds an Empire from Thirteen Suits of Armor
The Jurchens, who now refer to themselves as the Manchus, used to be people without a nation until they founded the Qing dynasty. There weren't even that many of them, about 1.5 million around the early seventeenth century. In short, they didn't used to have much of a presence. It would be unnecessary to go any further than to explain that, up until the middle of the Joseon dynasty in Korea, they used to serve Joseon as their parent state.
Written by Hong Soon-do (Beijing correspondent, AsiaToday)