With the money problems it caused many fights and tons of stress in the streets to get jobs. Also even kids with signs in hope people will give jobs to their families.
Also during Harper Lee in 1930's and 1960's there was The Murder of Emmett Till which was a brutal abduction and murder which moved the emerging of the Civil Rights Movement.
When this happened it shocked many Americans on what was going on in the US. With his mother being an account and being a amazing woman she was gone a lot working with confidential files, so most of the time Emmett was alone. When people found out how brutally murder this 14 year old boy this made a great move to more freedom for the blacks.
In Harper Lee's time period there was also the Civil Rights Movement. What this did was give black, African Americans, the freedom that they deserved like the right to vote, equal opportunity of employment, housing, education and lot more.... This was a big change because they had to go to separate places usually more worse to get stuff or even go to separate schools than the whites which were usually worse.
During this the Civil Rights Movement changed a lot in the United States causing a lot of the original laws for African Americans to be demolished and using the same ones for the whites are using. This of coarse still caused fights and repulse against allowing this movement to go through by humiliating or even killing them(Emmett Till). But it went through making all the US people all important.
But most of all there was Martin Luther King Jr. that helped the movement a lot.
Next there was the Scottsboro Trials were one of the most important American radicalism that successfully beat Jim Crow which was a white man named Thomas Dartmouth Rice made.