¬¬To date, modern society believes that the idea of ​​racism has little impact on humanity. However, the use of segregation can trigger a number of problems in society. The idea of ​​racism has produced a number of challenges for past society and is now influencing current society. The Ku Klux Klan was a major factor in advancing the idea of ​​racism. The Ku Klux Klan (KKK) was a secret organization that developed in the South after the Civil War of 1860. The organization used violence and terror to frighten freed African Americans and prevent them from taking advantage of their newly granted rights, especially the right to vote. The members of the secret organization disguised themselves in white robes and hoods. The organization was short-lived due to the response of federal legislation, which succeeded in destroying the organization and providing greater protection for African Americans and their rights. Harlem is a famous neighborhood in New York City. The district is a primary center for political activity and cultural education for African Americans. The neighborhood was originally a Dutch village, organized in 1968. The neighborhood is named after a city in the Netherlands whose name is Haarlem. During the Great Migration, many African Americans began to live in the neighborhood to escape segregation. Black Power is a term used to imply that African Americans should establish their own political, cultural, and social institutions independent of white society. The movement was well known in the late 1960s and early 1970s. Black power expresses black nationalism, which is the rejection of fear resulting from the presence of white people. Many whites feared the movement after the Black Panthers began using the movement as a militant organization. Black Panther is a 10-point program created in Oakland, California. The program was founded by Huey Newton and Bobby Seale. The organization insisted on freedom, full employment, reasonable living conditions, and adequate education for all African Americans. They also wanted to end capitalist exploitation, police brutality, and the release of innocent African Americans from prison. To achieve their goals, members of the organization armed themselves with rifles, wore combat jackets, marched in militia style, raised their clenched fists and shouted, “Power to the people.” After the program was constantly harassed by the police and other internal problems, the organization gradually began to crumble causing it to lose popular support..