Why might the founding fathers have included the phrase “insure domestic tranquillity”

For peace among individuals

To protect the citizens from domestic unrest, is the right answer.

Explanation:

The Framers of the Constitution of the United States had enough reason to attempt to “insure” domestic tranquility. Truly “domestic Tranquility” implies peace and quiet at the domestic level in the United States, in contrast to other countries. By using the phrase Tranquility, the Framers intended the nonexistence of disorders, revolutions, and comparable manifestations of social upheaval. They were hugely concerned with domestic tranquility because social chaos had become a more timid, vulnerable, and general state of activities in the new nations. Thus to protect the people of the state from domestic unrest, the framers used the phrase "insure domestic tranquility”.

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.