Learning Objective: Explain how internal and external factors contributed to change in various states after 1900.
A:The West dominated the global political order at the beginning of the 20th century, but both land-based and maritime
B:empires gave way to new states by the century's end.
The older, land-based C:Ottoman, Russian, and Qing empires collapsed due to a combination of internal and external
factors. These changes in Russia eventually led to communist revolution
States around the world challenged the existing political and social order, including the Mexican Revolution that arose as
a result of political crisis.
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the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

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the colonists were also expected to pay a tax to meet the costs of establishing and manning the borders of the proclamation line which led to the belief that the king had sided with the indians despite pontiac's rebellion, against the interests of the settlers. this contributed to the causes of the american revolution.