Answer:
Researchers finally isolated the virus that causes flu from pigs in 1931, and from humans in 1933.
Explanation:
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Answer:
The Explorers were were wrong because the Natives were civilized in their own way, they did not need to convert to a European Ideology in order to be considered "Civilized"
is there a little bit of more information
The Dred Scott Decision helped lead to the Civil War because it caused fighting between the North and South. The North was angry because people in the north had decided not to allow slavery in their states, and the Dred Scott decision allowed slaves to be brought into their states.
