Normandy was the area where Allied forces launched a campaign to take back France in WWII. It started with D-Day. It was called Operation Overlord, which was the Battle of Normandy, essentially.
Geothermal plateau. I'm only guessing, but since a lot of places use heat as energy it only makes sense.
The Louisiana Purchase was a land deal between the U.S. and France. The U.S. bought over 800,000 square miles along the Mississippi river(West) for $15 million dollars. This was so important because it expanded the U.S. almost half their size.
14th added anyone born in the US is a citizen.
15th Guaranteed voting rights for African Americans
Their offices were protected by republican politicians.
The policies of the Black Codes limited the rights of the southern black freemen
It was often it was often made up of important men in southern society.