Final answer:
Stokely Carmichael, chairman of SNCC, is renowned for popularizing the term 'Black Power' in 1966, advocating for political and economic independence for African Americans, and inspiring a larger Black Pride and cultural movement.
Step-by-step explanation:
The individual who brought significant attention to the phrase "Black Power" in 1966 was Stokely Carmichael, chairman of the Student Nonviolent Coordinating Committee (SNCC), who later changed his name to Kwame Ture. The concept of Black Power for Carmichael and others meant the empowerment of African Americans to build their own political strength and institutions independently from White-dominated society. This was a philosophy heavily influenced by the preceding work of Marcus Garvey and the emerging Black separatist movement, which advocated for African Americans to solve their problems autonomously and to develop their communities based on their cultural identity.
Carmichael further amplified the Black Power message during the March Against Fear, advocating for non-begging and self-reliant approaches to equality. The ideology reached greater public visibility with the Black Panther Party, founded by Huey Newton and Bobby Seale, which championed the principles of self-defense and socioeconomic independence espoused by Malcolm X. The Black Power movement was a decisive turn away from the nonviolent and more integrative strategies of early civil rights activism, seeking instead political and economic self-sufficiency, which had significant cultural implications, fueling a wave of Black Pride and cultural reconnection.