How did the portuguese become the first europeans involved in the slave trade?

Why did un coalition troops battle iraqi forces in 1991? iraq had invaded saudi arabia, along with its other border nations. iraq had invaded kuwait, which was a major source of the world's oil. the united nations wanted to remove saddam hussein from power. the united nations wanted to prevent the trade of illegal drugs.

Which statement in the passage best reflects sumer's opinion of the dred scott decision? a."i speak what cannot be denied." b."[the] judgment was sustained by a falsification of history." b."the opinion was more thoroughly abominable than anything history." i speak what cannot be denied when i declare that the opinion of the chief justice in the case of dred scott was more thoroughly abominable than anything of the kind in the history of courts. judicial baseness reached its lowest point on that occasion. you have not forgotten that terrible decision where a most unrighteous judgment was sustained by a falsification of history. -charles sumner, 1865

How did people react to electricity?