Answer: The Jutes
Explanation: One of the Germanic tribes that landed in the United Kingdom after the Romans departed
Only the private sector can create both positive and negative externalities.
Plymouth colony would be the answer.
The Great Migration/ The North Migration. The time period was fro 1916 to (I believe) 1970. During this time people migrated from the South to the North because they had so many more opporunities compared to in the South since they had actual factories there.