Population
There were 4 million enslaved people counted in the 1860 census. That dropped to zero in the 1870 count.
Data • By Topic • People & Society • Immigration • Immigration & Immigration Enforcement
This includes all nonimmigrant visas issued, including temporary visitors coming for work, school, or tourism. Visas vary in duration depending on the reason they are issued. Visa data excludes lawful permanent residents, also known as "green card" holders.
