Which item was a byproduct of the columbia

What does the document of the birtish octopus is an uderlying cause of the world war 1

In 1819, what did the united states obtain from spain for $5 million?

How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.