How did slavery change over time in colonial America?

However, many consider a significant starting point to slavery in America to be 1619, when the privateer The White Lion brought 20 African slaves ashore in the British colony of Jamestown, Virginia. The crew had seized the Africans from the Portugese slave ship Sao Jao Bautista

Explanation:

i believe the answer is d.

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.