Answer:
shovel or hand tools po sagot
In terms of growth in the United States, Jefferson's greatest legacy would be by far the purchase of the Louisiana Territory, which he bought from France for cheap.
The main factor regarding the <span>United States dominating the world economy after the world war 2 was that it was a highly industrialized nation, and had not been "touched" by the war physically due to its isolation between two major oceans. </span>
This depends slightly on the region of Africa in question, but many of them were re-sold into slavery for other tribes in the region, while others were eventually freed.