One characteristic of an origin story is a supreme being. a being that will trigger the events that create the phenomenon.
I think it would be the treaty of Paris in 1763?
Answer: I think they never said they could... but I don't know history-
Explanation: The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity. The main reason the United States announced the Open Door Policy is to ensure that U.S. businesses could operate in China. The backlash against foreigners led to widespread killings of missionaries working in China and an increase in nationalist feelings among the Chinese. The Boxer Rebellion was one of the most important events caused by this anti-foreign movement.
Better transportation affected the growth and urbanization of cities by allowing more people to travel, which in turn led to more people settling down in these cities to start a new life.
Better communication affected the growth and urbanization of cities by allowing people to understand each other better, which led to more people coming to these cities and socializing, which improved economy. People who can communicate can perform business better and communicate outside of the city, drawing more people there.