The United States claimed Vietnam as a colony after World War ll
American Law is heavily influenced by British Common Law which was in turn influenced by Roman law, as England was conquered by the Romans and the classical societies were incredibly influential during the Enlightenment.
As a result, latin terms have trickled down over the ages and have remained an integral part of "legalese"
Slavery was given to them, they bought their rights and they felt like that was justification for buying blacks.
