They were signing a petition to establish the 'Columbia Territory'.
This is a simple definition of his philosophy called Dualism.
Unequal treaty, in Chinese history, any of a series of treaties and agreements in which China was forced to concede many of its territorial and sovereignty rights. They were negotiated during the 19th and early 20th centuries between China and foreign imperialist powers, especially Great Britain, France, Germany, the United States, Russia, and Japan.
repetition, imagery, and rhythm
Generally speaking, Vietnamese culture was more connected to "Southeast Asian culture" than to China, since China's influence in the region was almost all political in nature.