The Chinese exclusion act of 1882 is significant because it is the first time the US federal government did what?

The Chinese Exclusion Act of 1882 is significant because it marked the first time the U.S. federal government implemented a law that specifically prohibited Immigration based on nationality and race. This legislation effectively barred Chinese laborers from entering the United States and set a precedent for future restrictive immigration policies targeting specific ethnic groups. It reflected the growing societal and political tensions surrounding immigration and racial identity in the late 19th century.