Rosa Parks (1913-2005) performed an act of insurrection when she refused to stand up and give her bus seat, located the bus section that was supposed to be for black passengers, to a white woman after the bus driver requested her to do so because the white section of the vehicle was already full. This happened in Montgomery in 1955. She was arrested for violating the segregation laws from Alabama.
Her action and subsequent arrest triggered the start of the Montgomery Bus Boyycott, as a social protest within Civil Rights Movement that lasted from 1955 to 1956 and aimed to end segregation in US public facilities.
To have complete control over all economic happenings
Primary sources told an account of what actually happened because they were recorded from the actual event itself/saw the actual event
secondary sources (like our textbooks) arent 100% accurate because they are based off of the primary sources