Because hitler saw them as "unpure" races.
He was known for his code of laws called Code of Hamurabbi.
Answer:
As a result of the Compromise of 1850, slavery continued in Washington DC, but slave trading was banned.
Explanation:
The Compromise of 1850 was a set of legislative initiatives carried out in the United States in 1850 to resolve a series of tensions arising with the colonization of California, driven by the so-called gold fever, and by annexation of territories after the US intervention in Mexico (1846-1848), which gave rise to territorial conflicts and the discussion about the legality of slavery in the new states.
In addition to admitting California as a free state and Utah and New Mexico as slave states, the sale of slaves, though not slavery, was banned in Washington DC as part of the Compromise of 1850.
