Widespread unrest during the Civil Rights Era was primarily caused by systemic racism, segregation, and economic inequality faced by African Americans in the United States. Many cities erupted in protests, often fueled by specific incidents of racial violence or discrimination, such as the assassination of civil rights leader Medgar Evers and police brutality against peaceful protestors. The frustrations over pervasive injustices led to the emergence of grassroots organizations and mass mobilization aimed at securing civil rights. This period also witnessed significant social and political upheaval, as advocates employed various strategies, including nonviolent protests, legal challenges, and community organizing, to demand equality and justice.