Christopher Columbus
Since the late 20th century, historians have criticized Columbus for initiating colonization and for abuse of natives. Among reasons for this criticism is the poor treatment of the native Taíno people of Hispaniola, whose population declined rapidly after contact with the Spanish. Columbus required the natives to pay tribute in gold and cotton. Modern estimates for the pre-Columbian population of Hispaniola are around 250,000–300,000. According to the historian Gonzalo Fernandez de Oviedo y Valdes, by 1548, 56 years after Columbus landed, and 42 years after he died, fewer than 500 Taíno were living on the island. The indigenous population declined rapidly, due primarily to the first pandemic of European endemic diseases, which struck Hispaniola after 1519. The natives had no acquired immunity to these new diseases and suffered high fatalities. There is also documentation that they were overworked.
Dominican Republic
The Arawakan-speaking Taíno moved into Hispaniola from the north east region of what is now known as South America, displacing earlier inhabitants, c. AD 650. They engaged in farming and fishing and hunting and gathering. The fierce Caribs drove the Taíno to the northeastern Caribbean during much of the 15th century. The estimates of Hispaniola's population in 1492 vary widely, including one hundred thousand, three hundred thousand, and four hundred thousand to two million. Determining precisely how many people lived on the island in pre-Columbian times is next to impossible, as no accurate records exist. By 1492 the island was divided into five Taíno chiefdoms. The Taíno name for the entire island was either "Ayiti" or "Quisqueya".