Columbia subject headings:
Harvard subject headings:
Antislavery movements--Brazil--History.
Slave trade--Brazil--History.
Slavery--Law and legislation--Brazil--History.
Princeton subject headings:
Civil law--Brazil--History--19th century.
Persons (Law)--Brazil.
Slavery--Brazil--History--19th century.
Slaves--Brazil--Social conditions.
Slaves--Legal status, laws, etc.--Brazil.