How has US immigration policy changed since the early 1800s?

Since the early 1800s, U.S. Immigration policy has evolved significantly, reflecting changing social, economic, and political contexts. Initially characterized by open borders and minimal regulation, the late 19th and early 20th centuries saw the introduction of restrictive measures, such as the Chinese Exclusion Act of 1882 and the Immigration Act of 1924, which established quotas based on nationality. In recent decades, policies have shifted towards a focus on border security, enforcement of immigration laws, and a more complex legal immigration system, including pathways for refugees and asylum seekers. Overall, immigration policy has oscillated between inclusion and restriction, influenced by factors such as labor needs, national security, and social attitudes.