Why were the years of the crusades so violent?

Because they were primarily started to secure control of holy sites considered sacred by both groups.

Explanation:

The Roman Catholic Church wanted to take back the holy land from Islamic rule during medieval times. To do this they perfomed many "crusades" resulting in estimated millions of death.

overtime, the civil rights movement changed in a way that not only it benefited african-americans, but benefited other ethnicity's such as latinos, asians, or women too! that's why the results of the movement be called mixed.

the civil rights movement brought about tremendous changes. no longer were blacks denied the right to vote, to eat, shop, and swim where they , and more importantly, to attend integrated schools. despite its many accomplishments, however, the civil rights movement had its shortcomings. for example, many people, both young and old, lost their lives, homes, jobs, and families. still other individuals were so damaged by psychological trauma that they ceased being productive members of the community. the movement left intact the economic inequities that had contributed to the maintenance of segregation. and finally, racism remained alive and well long after the movement's end. like most movements of its kind, the civil rights movement left behind a mixed legacy of triumph and tragedy.

from the conditions of the working class in england by friedrich engels,the main idea is :