11. What were the east-west boundaries of the United States as defined in the Treaty of Paris, 1783?
a) The Atlantic to the east and the Pacific to the west
b) The Atlantic to the east and the Mississippi River to the west
c) The Mississippi to the west and the Appalachians to the east.
d) The Atlantic to the east and the Ohio River to the west.

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In 911, a group of vikings lead by rollo besieged paris and chartres. after a victory near chartres on 26 august, charles decided to negotiate with rollo. the talks were led by hervé, the archbishop of reims. this resulted in the treaty of saint-clair-sur-epte, which granted rollo and his soldiers all the land between the river epte and the sea. it also granted him brittany, "for his livelihood". at the time, brittany was an independent land which france had not been able to conquer. in exchange, rollo promised the king his loyalty and military assistance when needed. also rollo also agreed to be baptised and to marry gisela, the king's daughter. the territory given rollo is about the same as upper normandy. this would grow to become normandy under rollo's descendants. - wikepedia