Voting Rights
On March 7, 1965, later known as Bloody Sunday, peaceful protesters marching in Selma, Alabama, were brutally assaulted by state troopers. The incident spread across the news and prompted the passing of the 1965 Voting Rights Act, which suspended literacy tests and poll taxes, and “permitted the Justice Department to dispatch federal examiners into regions where voter registration lagged,” according to the U.S. House of Representatives’ History, Art & Archives.
https://history.house.gov/HistoricalHighlight/Detail/35187?ret=True