Why did the united states try to stay isolated from foreign affairs?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

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

The threat of foreign intervention to restore louis xvi to the throne caused the french revolution to ?