Constituían una sociedad secreta con connotaciones políticas, practicantes de artes marciales. Su objetivo era expulsar a los extranjeros de China. En 1899 emprendieron una campaña de terror por el norte del país que, inicialmente, se dirigió contra misioneros cristianos.
<span>The purpose of the Open Door Policy was to give all nations equal rights when trading with China, according to the Encyclopaedia Britannica. It was initiated by the United States and aimed to both enhance global trade and to promote China's welfare and sovereignty.</span>
The price of oil doubled per barrel, then quadrupled and challenged the stability of the whole national economy.
