Simple. on any country, the process are the same. you will file for a citizenship and it should be proven that you are very willing to live in the US in the court.
They were both used as processing centers by the US Government to process immigrants.
Immigrants come to the US every year. There has never been a single year of US history in which there were no immigrants.
The process that grants immigrants the rights and privileges of citizenship is called Naturalization.
Congress
Legal immigrants have to apply to the US government for permission to immigrate. Illegal immigrants sneak in.
Immigrants coming to the US are sponsored are sponsored by family members or employers.
Unless the US citizen is a Native American, all other US citizens are immigrants or descendants of immigrants. Native American make-up 1%-2% of the total US population.
Most immigrants derived from Europe
Naturalization
Congress
Naturalization
no