of Barbados was estimated at 30,000, of which about 800 were of African descent, with the remainder mainly of English descent. These English smallholders were eventually bought out, and the island filled up with large sugar plantations worked by African slaves. By 1660, there was near parity with 27,000 blacks and 26,000 whites. By 1666, at least 12,000 white smallholders had been bought out, died, or left the island. Many of the remaining whites were increasingly poor. By 1680, there were 17 slaves for every indentured servant. By 1700, there were 15,000 free whites and 50,000 enslaved Africans. Because of the increased implementation of slave codes, which created differential treatment between Africans and the white workers and ruling planter class, the island became increasingly unattractive to poor whites. Black or slave codes were implemented in 1661, 1676, 1682, and 1688. In response to these codes, several slave rebellions were attempted or planned during this time, but none succeeded. Nevertheless, poor whites who had or acquired the means to emigrate often did so. Planters expanded their importation of African slaves to cultivate sugar cane. Brazil Slavery in Brazil began long before the first Portuguese settlement was established in 1532, as members of one tribe would enslave captured members of another. Later, Portuguese colonists were heavily dependent on indigenous labour during the initial phases of settlement to maintain the subsistence economy, and natives were often captured by expeditions called . The importation of African slaves began midway through the 16th century, but the enslavement of indigenous peoples continued well into the 17th and 18th centuries. During the Atlantic slave trade era, Brazil imported more African slaves than any other country. Nearly 5 million slaves were brought from Africa to Brazil during the period from 1501 to 1866. Until the early 1850s, most African slaves who arrived on Brazilian shores were forced to embark at West Central African ports, especially in Luanda (in present-day Angola). Today, with the exception of Nigeria, the country with the largest population of people of African descent is Brazil. Slave labour was the driving force behind the growth of the sugar economy in Brazil, and sugar was the primary export of the colony from 1600 to 1650. Gold and diamond deposits were discovered in Brazil in 1690, which sparked an increase in the importation of African slaves to power this newly profitable market. Transportation systems were developed for