Zhu Yousong was captured on 15 June and brought to Beijing, where he died the following year. The dwindling Southern Ming were continually pushed farther south, and the last emperor of the Southern Ming, Zhu Youlang, was finally caught in Burma, transported to Yunnan, and executed in 1662 by Wu Sangui.
North America was the closest comparison. The mongol empire covered 9.15 million square miles of land while North America covers 9.54 million square miles of land.