A. They started because of the lack of agricultural support in the south :))
i hope this be helpful
Middle Ages (also called Dark Ages) – Lasted from the 5th to the 14th century. It began with the collapse of the Western Roman Empire and merged into the Renaissance<span>and the </span>Age<span> of Discovery.</span>
Differing beliefs in who should be involved in government began the split between Alexander Hamilton and Thomas Jefferson and James Madison.
Answer:
Explanation:Marcus Aurelius died on March 17, 180. His son Commodus became emperor and soon ended the northern military efforts
