Explain two different types of Nazi camps

There's early concentration camps and The Nazzi Ghettos which is The first modern concentration camps were created by the Spanish in 1896 as "reconcentrados" to house Cubans suspected of supporting insurgents during the Cuban War of Independence and the British during the Second Boer War.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.