To portuguese explorers and trade merchants, the part of africa that became very profitable due to natural resources like ivory and precious metals became known as the

a drastic rise in oil prices ended decades of postwar.

president thomas jefferson hoped that the embargo act of 1807 would the united states by demonstrating to britain and france their dependence on american goods, convincing them to respect american neutrality and stop impressing american seamen. instead, the act had a devastating effect on american trade.