What event signaled the start of the middle ages? the attack of the vikings the fall of the roman empire the crowning of charlemagne the fall of constantinople to the ottoman empire the invention of the printing press

answer; john stuart mill's principle of utility is your answer; /// good luck

liverpool, trent alexander arnold

explanation:

i would say b. research typically uses a variety of sources

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj