How did the Little Rock Nine change the United States? They changed some Americans' views on segregation. They helped African Americans desegregate public schools. They won a court case to end segregation in public schools. They help hy create the Montgomery Bus Boycott . They helped advance the Civil Rights Movement,

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

not sure might be he acquired the entire oregon territory from great britain