"[L]iving experience of blacks in Europe appeared to be marked by smooth integration into European society... The 140,000 slaves imported into Europe from Africa between 1450 and 1505 were a welcome new labor force in the wake of the Bubonic Plague. On the whole, blacks in Christian Iberia were not limited to servile roles; but... were... not influential as a group. ...Free blacks living in and Lagos in the southern edge of Portugal owned houses and worked as day laborers, midwives, bakers, and servants. Most were domestic servants, laborers (including those on ships and river craft), and petty tradesmen. Some free blacks, especially women, became innkeepers. Blacks in Spain served as stevedores, factory workers, farm laborers, footmen, coachmen, and butlers. ...A few Africans active in the Americas during the early Iberian expansion were among returnees to Portugal and Spain from America and Africa from the 16th to the 18th centuries. These included free mulatto students, clerics, free and slave household servants, sailors, and some who attained gentlemen’s status. ...[M]any black women slaves as domestics and concubines led to mulatto offspring who received favored treatment, and ...some ...attained middle-class and even aristocratic status."