In 1618, in order to encourage people to against the Ming Dynasty. Nurhaci wrote an article called the Seven Great Vexations and sent it to the public.
Form 1618 until 1622, Nurhaci led armies to against the Ming Dynasty. He successfully occupied 70 cities in the north-eastern part of China. The capital was changed to Liao Yang after several battles.
In 1626, Nurhaci led armies to attack the Ningyuan city. Unluckily, Nurhaci was wounded by Yuan Chonghuan's Portuguese cannon and he died 2 days later at a little town called De-A Man.