The "New" immigrants where natives of southern and eastern Europe.
:)
Answer: The Pirates led by Jean Lafitte.
Explanation:
After the end of the Napoleonic wars, many pirates lost their jobs. They join a group and loot merchant ships in America and European countries. This problem has reached the top of the governments of individual countries.
By 1835 piracy in the Caribbean had been defeated by the combined forces of America, Great Britain and Spain. The Berber pirates were earlier destroyed by US Navy action.
It's mainly because of A and B, because after the war, the industrial resolution happened, and farmers are replaced by machines, farmers has no work to do, their speed is no compare to the machines, so they must move to another place. Also the population in Europe is growing in a extremely fast speed. Hope that helps :)
He was a an absolute ruler