The salad bowl concept suggests that the integration of the many different cultures of United States residents combine like a salad, as opposed to the more traditional notion of a cultural melting pot. New York City can be considered as being a "salad bowl".
Some of the tensions that resulted in South Carolina’s rejection of federal authority during president Jackson’s administration include the readiness of President Jackson to use federal force in order to preserve the Union. Jackson also differed with his vice president Calhoun over the nullification issue which led Calhoun to resign
I assume your talking about the HUNS... When the empire split in two the east had more gold and more resources and the dying west had to suffer all the barbarian attacks like the huns... The East quite simply was more prepared and had more walls and guards to defend their border also the Eastern Empire had the river danube north of them which helped deflect the Hunnic invasions and other barbarian invasion more west...
The answer is the Glorious Revolution of 1688
Lusitania. British passenger ship. U boats. Soldiers killed wounded and missing