Slavery existed but was not widespread within the colony. Some Indians captured in the Pequot War were enslaved, with those posing the greatest threat being transported to the West Indies and exchanged for goods and slaves. Governor John Winthrop owned a few Indian slaves, and Governor Simon Bradstreet owned two black slaves. The Body of Liberties enacted in 1641 included rules governing the treatment and handling of slaves. Bradstreet reported in 1680 that the colony had 100 to 120 slaves, but historian Hugh Thomas documents evidence suggesting that there may have been a somewhat larger number.