Slavery was practiced in some parts of Africa, Europe, Asia and the Americas for many centuries before the beginning of the Atlantic slave trade. There is evidence that enslaved people from some African states were exported to other states in Africa, Europe and Asia prior to the European colonization of the Americas.he Atlantic slave traders, ordered by trade volume, were: the Portuguese, the British, the French, the Spanish, and the Dutch Empire. Several had established outposts on the African coast where they purchased slaves from local African leaders.
Quick Answer. As of September 2014, the U.S. population is 318 million people and approximately 30 percent, or 95 million, have graduated college with a bachelorâs degree. Another 17 percent, or 54 million, have graduated with an associate's degree.
In 2000, 38 percent of Americans age 25 to 34 had a degree from a community college or a four-year institution, putting the nation in fourth place among its peers in the O.E.C.D. By 2011, the graduation rate had inched up to 43 percent, but the nationâs ranking had slipped to 11th place. Advertisement.