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A treaty between the US and Spain that gave Florida to the US and developed a boundary to the Southwest that belonged to Spain.
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Mexico liberates itself from Spain.
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The war began as it looked to define America's territory. It resulted in the acquisition of the current American southwest states and the US further demonstrated their might.
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The treaty ended the US-Mexican War. The US was granted everything north of the Gila River in exchange for $15 million.
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The Gadsden purchase was an exchange of $10 million for parts of Mexico that would now become part of Arizona and New Mexico.
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The 14th amendment included a citizenship clause that granted citizenship to people born within the US.
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The US started the creation of a border control that looked to deter immigration into the US.
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At the start of the Mexican Revolution many Mexicans fled into Mexico.
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Arizona joins the union and is the 48th state. The last of the continental states.
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This act was targeted mostly at restricting the immigration of Eastern and Southern Eurpeans. At this point you can start to see a movement towards keeping the borders secure.
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For the first time, illegal immigrants are subject to arrest within the US.
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The US deports 3.8 million Mexicans. This was a response to decreasing job numbers and excessive immigration.
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This program allowed Mexican men to come to America on short-term work visas.
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The Anti-Billingual Initiative made Arizona schools "english only."
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This act granted the building of 700 miles of fence along the border of Mexico.
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This law allowed officers to demand proof of citizenship. The law has been challenged and its' constitutionality has been in question.
