sentences:  As a result of widespread manumission (easier in Brazil than in North America), by this time approximately three quarters of the blacks and mulattoes in Brazil were free.Slavery was not legally ended nationwide until 1888, when Isabel, Princess Imperial of Brazil, promulgated the "Lei Áurea" ("Golden Act").But it was already in decline by this time (since the 1880s the country began to attract European immigrant labor instead).