La constitución nacional es rígida o flexible? Fundamente

Which did president carter refuse to do in his attempt to free american hostages taken by iran?

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

How did slavery end in the united statesa. it ended with the emancipation proclamationb. it ended when the union won the civil warc. it ended with the fifteenth amendmentd. it ended with the 13th amendment