What factors could have influenced Willem Kieft to grant freedoms to these eleven Africans?

answer; i do believe that its(gestation,suction-aspiration or vacuum aspiration;

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”

answer; no longer than a reasonable period of time;