奴隷制度
the institution of slavery
奴隷制度の許可
奴隷制度の廃止。
a system by which a person is appointed to tend to the estate or property of a person who has been deemed unable or incompetent to administer it himself or herself
a reformer who favors abolishing slavery
the jury system
a system used before the one presently being used
where slavery was prohibited
a system
the bicameral system