Final answer:
During the beginning of the 20th century, notable black intellectuals such as Booker T. Washington and W. E. B. Du Bois made significant contributions to the civil rights movement by advocating for equality and social justice through education and entrepreneurship.
Step-by-step explanation:
During the beginning of the 20th century, there were several influential black intellectuals who made significant contributions to the civil rights movement. Two notable figures are Booker T. Washington and W. E. B. Du Bois. Booker T. Washington advocated for equality through education and entrepreneurship, while W. E. B. Du Bois fought for social justice and equality of opportunity. Other important black intellectuals of the time include Alain Locke, who championed the idea of the 'New Negro,' and Carter G. Woodson, who transformed black history into a scholarly discipline.