What is a good example of a protest that happened in the united states that called for change and had effect?

FURGUSON BOY poor old boy was a good boy he just made some bad choices at times he needed a little help is all thats all WE ALL NEEDA PEACEFULLY PROTEST THE **** OUTTA THIS AITE

Women's suffrage

Some unionized workers' strikes

Civil rights

Civil Rights Movement .

the call for cheap gas

what