1- http://en.wikipedia.org/wiki/Anthony_Johnson_%28colonist%29
2- http://en.wikipedia.org/wiki/History_of_slavery
3- http://en.wikipedia.org/wiki/Atlantic_slave_trade
4- http://en.wikipedia.org/wiki/Barbary_slave_trade
5- http://en.wikipedia.org/wiki/Slavery_in_the_United_States
*Anthony Johnson , the black slave owner opened the door for humans to be property as slaves in the USA. He filed for the right to own humans as property after a black indentured servant ran away from him.