What made the Dutch East India Company (VOC) leave Taiwan? Ask any Taiwanese school boy versed in his history and he will tell you that Zheng Cheng-gong (aka Koxinga and son of Zheng Zhi-long Iquan) fleeing the Manchu takeover of China came to Taiwan with a force of some 25,000 men in 1661. After a nine month siege, he captured Fort Zeelandia (Anping) and thus forced the Dutch out of Taiwan. All well and good, but that rendering is not entirely accurate. True, Koxinga, who died that same year, did capture Fort Zeelandia in 1662, and true the Dutch left. But few books continue on and relate how the Dutch returned in 1664 and took Keelung. Once there they re-built the former Spanish Fort San Salvador, named it Fort Noord Holland and set up shop in hopes of establishing trade with the Manchu Qing. Ironically, it would be that same Manchu Qing government in Beijing and not Zheng's successors that would be responsible for making the Dutch decide to leave Taiwan for good in 1668. The Dutch side of how all that happened is brought out in greater detail in two recent books published in late 2010.