Answer: Spanish settlement resulted in much suffering and hardship; it turned many Native Americans into slaves and killed millions of them through battle, mistreatment, and disease.
Explanation:
<span>The event, which was free and open to the public, was sponsored by Rockford University, where Addams graduated in 1881 as the class valedictorian, and the Jane Addams Hull-House Museum in Chicago, site of her extraordinary efforts on behalf of new immigrants in the late 1800s and early 1900s.</span>
Agriculture was the main factor
1) They mostly spread Islam through conquering new countries. What they did also was unite all people under a single rule and ended religious uprisings.
2) There was tensions because one faction believed that Muhammad should be succeeded by someone chosen by people, while the other faction believed that his successor should be someone from his bloodline.
