Question: What were additional names for the Back-to-Africa movement pioneered by Alfred Charles Sam?

full_context: Document 1: C. Alfred &quot;Chief&quot; Anderson: Charles Alfred Anderson, Sr., (February 9, 1907 – April 13, 1996) was an American aviator who is known as the "The Father of Black Aviation".
Document 2: Benjamin &quot;Pap&quot; Singleton: Benjamin "Pap" Singleton (1809–1892) was an American activist and businessman best known for his role in establishing African American settlements in Kansas. A former slave from Tennessee who escaped to freedom in 1846, he became a noted abolitionist, community leader, and spokesman for African-American civil rights. He returned to Tennessee during the Union occupation in 1862, but soon concluded that blacks would never achieve economic equality in the white-dominated South. After the end of Reconstruction, Singleton organized the movement of thousands of black colonists, known as Exodusters, to found settlements in Kansas. A prominent voice for early black nationalism, he became involved in promoting and coordinating black-owned businesses in Kansas and developed an interest in the Back-to-Africa movement.
Document 3: Alfred Sam: Alfred Charles Sam (c.1880 – 1930s?), known as Chief Alfred Sam, was a Gold Coast-born merchant and pioneer pan-Africanist who in 1913-15 encouraged the resettlement of African Americans as part of the Back-to-Africa movement.
Document 4: Great Migration (African American): The Great Migration was the movement of 6 million African-Americans out of the rural Southern United States to the urban Northeast, Midwest, and West that occurred between 1916 and 1970. Until 1910, more than 90 percent of the African-American population lived in the American South. In 1900, only one-fifth of African-Americans living in the South were living in urban areas. By the end of the Great Migration, 53 percent of the African-American population remained in the South, while 40 percent lived in the North, and 7 percent in the West, and the African-American population had become highly urbanized. By 1970, more than 80 percent of African-Americans lived in cities, and by 1960, of those African-Americans still living in the South, half now lived in urban areas. In 1991, Nicholas Lemann wrote that the Great Migration:
Document 5: Black separatism: Black separatism is a separatist political movement that seeks separate economic and cultural development for those of African descent in societies, particularly in the United States. Black separatism is a subcategory of black nationalism, stemming from the idea of racial solidarity, and implies that blacks should organize themselves on the basis of their common experience of oppression as a result of their blackness, culture, and African heritage. Black separatism in its purest form, as a subcategory of black nationalism, asserts that blacks and whites ideally should form two independent nations. Black separatists also often seek their original cultural homeland. Black separatists generally think that black people are hindered in their advancement in a society dominated by a white majority.
Document 6: Black is beautiful: Black is beautiful is a cultural movement that was started in the United States of America in the 1960s by African Americans. It later spread beyond the United States, most prominently in the writings of the Black Consciousness Movement of Steve Biko in South Africa.
Document 7: Black orientalism: Black orientalism is an intellectual and cultural movement found primarily within African-American circles. While similar to the general movement of Orientalism in its negative outlook upon Western Asian - especially Arab - culture and religion, it differs in both its emphasis upon the role of the Arab slave trade and the Coolie slave trade in the historic dialogue between sub-Saharan Africa and the Arab - and greater Muslim - world, as well as a lack of colonial promotion over the Middle East region as was promoted by European orientalism in the same region. The term "black orientalism" was first used by Kenyan academic Ali Mazrui in his critique of Henry Louis Gates, Jr.'s documentary "Wonders of the African World". Supporters of this movement include writers such as Chinweizu.
Document 8: Sons of Africa: Sons of Africa was a late 18th-century British group that campaigned to end slavery. Its members were educated Africans in London, freed slaves who included Ottobah Cugoano, Olaudah Equiano and other leading members of London's black community. It was closely connected to the Society for the Abolition of the Slave Trade, a non-denominational group founded in 1787, whose members included Thomas Clarkson.
Document 9: Door of Return: The Door of Return is an emblem of African Renaissance and is a pan-African initiative that seeks to launch a new era of cooperation between Africa and the Diaspora in the 21st Century. The initiative is Chaired by the Hon. Timothy E. McPherson Jr., Minister of Finance for the Accompong Maroons in Jamaica, and is being spearheaded across Africa in cooperation with Nigeria, Ghana and Zimbabwe as part of the United Nations's International Decade for People of African Descent.
Document 10: African-American self-determination: African-American self-determination refers to efforts to secure self-determination for African-Americans and related peoples in North America. It often intersects with the historic Back-to-Africa movement and general Black separatism, but also manifests in present and historic demands for self-determination on North American soil, ranging from autonomy to independence. Reparations for slavery and other oppressions are often a key demand for advocates of African-American self-determination.
Document 11: Rastafari: Rastafari, sometimes termed Rastafarianism, is an Abrahamic religion. Classified as a new religious movement, it developed in Jamaica during the 1930s. It lacks any centralised authority and there is much heterogeneity among practitioners, who are known as Rastafari, Rastafarians, or Rastas.
Document 12: Back-to-Africa movement: The Back-to-Africa movement, also known as the Colonization movement or Black Zionism, originated in the United States in the 19th century. It encouraged those of African descent to return to the African homelands of their ancestors. This movement would eventually inspire other movements ranging from the Nation of Islam to the Rastafari movement, and proved to be popular among African-Americans.
Document 13: Black Power movement: The Black Power movement was a political movement to achieve a form of Black Power and the many philosophies it contains. The movement saw various forms of activism some violent and some peaceful, all hoping to achieve black empowerment. The Black Power movement also represented socialist movements, all with the general motivation of improving the standing of black people in society. Originated during the Civil Rights Movement, some doubted the philosophy of the movement begging for more radical action, taking influences from Malcolm X. The cornerstone of the movement was the Black Panther Party, a Black Power organization dedicated to socialism and the use of violence to achieve it. The Black Power movement developed amidst the criticisms of the Civil Rights Movement in the early 1960s, and over time and into the 1970s, the movement grew and became more violent. After years of violence, many left the movement and the police began arresting violent actors in the movement. The Black Power movement also spilled out into the Caribbean creating the Black Power Revolution.
Document 14: Black Star of Africa: The Black Star of Africa is a black five-pointed star (★) symbolizing Africa in general and Ghana in particular. The Black Star Line, founded in 1919 by Marcus Garvey as part of the Back-to-Africa movement, modelled its name on that of the White Star Line, changing the colour from white to black to symbolise ownership by black people rather than white people. The black star became a symbol of Pan-Africanism and anti-colonialism. Described as the "Lodestar of African Freedom", the black star was used in 1957 by Theodosia Okoh in the design of the Flag of Ghana.
Document 15: Pan-Africanism: Pan-Africanism is a worldwide intellectual movement that aims to encourage and strengthen bonds of solidarity between all people of African descent. Based upon a common fate going back to the Atlantic slave trade, the movement extends beyond continental Africans, with a substantial support base among the African diaspora in the Caribbean, Latin America and the United States. It is based on the belief that unity is vital to economic, social, and political progress and aims to "unify and uplift" people of African descent. The ideology asserts that the fate of all African peoples and countries are intertwined. At its core Pan-Africanism is "a belief that African peoples, both on the continent and in the diaspora, share not merely a common history, but a common destiny".
ground_truth: Colonization movement or Black Zionism