The explosion of European immigration into the United States in the late 1800s can best be explained by a wide variety of entry points into the United States. an increase of Asian immigration through Angel Island. pull factors in Europe and push factors in America. push factors in Europe and pull factors in America.

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.

B.laws making it crime to tell lies about oneself are not needed.