Black nationalism (BN) advocates a racial definition (or redefinition) of national identity, as opposed to multiculturalism. There are different indigenous nationalist philosophies but the principles of all African nationalist ideologies are unity, and self-determination or independence from European society. Martin Delany is considered to be the grandfather of African nationalism.

Inspired by the apparent success of the Haitian Revolution, the origins of African indigenous nationalism in political thought lie in the 19th century with people like Marcus Garvey, Henry McNeal Turner, Martin Delany, Henry Highland Garnet, Edward Wilmot Blyden, Paul Cuffe, etc. The repatriation of African American slaves to Liberia or Sierra Leone was a common African nationalist theme in the 19th century. Marcus Garvey's Universal Negro Improvement Association of the 1910s and 1920s was the most powerful black nationalist movement to date, claiming 11 million members.

According to Wilson Jeremiah Moses in his famous work Classical Black Nationalism, African nationalism as a philosophy can be examined from three different periods giving rise to various ideological perspectives for what we can today consider what African nationalism really is.

Malcolm X ( /ˈmælkəm ˈɛks/; May 19, 1925 – February 21, 1965), born Malcolm Little and also known as El-Hajj Malik El-Shabazz (Arabic: الحاجّ مالك الشباز‎), was an African-American Muslim minister and human rights activist. To his admirers, he was a courageous advocate for the rights of African Americans, a man who indicted white America in the harshest terms for its crimes against black Americans. Detractors accused him of preaching racism, black supremacy, antisemitism, and violence. He has been called one of the greatest and most influential African Americans in history.

Malcolm X's father died—killed by white supremacists, it was rumored—when he was young, and at least one of his uncles was lynched. When he was thirteen, his mother was placed in a mental hospital, and he was placed in a series of foster homes. In 1946, at age 20, he went to prison for breaking and entering.

In prison, Malcolm X became a member of the Nation of Islam and after his parole in 1952 he quickly rose to become one of its leaders. For a dozen years Malcolm X was the public face of the controversial group, but disillusionment with Nation of Islam head Elijah Muhammad led him to leave the Nation in March 1964. After a period of travel in Africa and the Middle East, he returned to the United States, where he founded Muslim Mosque, Inc. and the Organization of Afro-American Unity. In February 1965, less than a year after leaving the Nation of Islam, he was assassinated by three members of the group.

The term black supremacy is a blanket term for various ideologies which hold that black people are superior to people of other races.

In the 1930s the Nation of Islam emerged, coming to prominence during the 1960s, when charismatic minister Malcolm X became a spokesman for the movement. The group's founders, "Master Fard" Muhammad and Elijah Muhammad, preached the Doctrine of Yakub, which held that the Original Man was an "Asiatic black man". White people, it contended, were "grafted" from black people 6,000 years ago by an ancient black scientist named Yakub.

The belief in sacrificial killing and ritualistic murder was part of the early Nation of Islam doctrine. Fard thought explicitly that it was the duty for every Muslim to offer as sacrifice four "Caucasian devils". A portion of Fard's lesson reads as follows:

Why does Fard Mohammad and any Moslem murder the devil? What is the duty of each Moslem in regard to four devils? What reward does a Moslem receive by presenting the four devils at one time? — Because he is one hundred percent wicked and will not keep and obey the laws of Islam. His ways and actions are like a snake of the grafted type. So Mohammad learned that he could not reform the devils, so they had to be murdered. All Moslems will murder the devil because they know he is a snake and also if he be allowed to live, he would sting someone else. Each Moslem is required to bring four devils, and by bringing and presenting four at one time his reward is a button to wear on the laple of his coat, also a free transportation to the Holy City of Mecca.