On Mexico's national flag, the eagle perched on the cactus represents what the nomad tribe of the Mexica people (who would become the Aztec tribe) believed was a sign from their god to indicate where to build their new city. The snake was a misinterpretation from the Spanish, and the concept stuck.
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Segregation is the physical separation of peoples on the basis of ethnicity and social custom historically applied to separate African Americans and Mexican Americans from whites in Texas. Although the law specified until 1890 that black schools were to have equal access to the common school fund, they often did not.

Trade may affect people’s perspective on how high class someone is.
People believe that conventions created specifically for the ratification of amendments form better representations of the people's will. State legislatures can oftentimes be biased for or against a certain amendment for their own wellbeing rather than that of the people they represent.
One major historical example of this can be seen in the use of ratification committees for the ratification of the American Constitution; the Founding Fathers believed that certain state legislatures would not ratify the Constitution even if the citizens of the states wanted to, so special conventions were created to more accurately portray the will of the people.