 Demand for African labour increased in the Caribbean because of the massive deaths among the Taíno and other indigenous populations, resulting primarily from Eurasian infectious diseases to which they had no immunity, as well as conflict with the Spanish, and harsh working conditions.By the mid-16th century, slave trade from Africa to the Caribbean was so profitable that the Englishmen Francis Drake and John Hawkins engaged in piracy and violated Spanish colonial laws, in order to forcibly transport approximately 1500 enslaved people from Sierra Leone to Hispaniola (Haiti and Dominican Republic).During the 17th and 18th centuries, European colonialism in the Caribbean became increasingly reliant on plantation slavery, so that, by the end of the 18th century, on many islands, enslaved Afro-Caribbeans far outnumbered their European masters.