| 1896 | Publication of "Suppression of the African Slave Trade." | W.E.B. DuBois |
| 1903 | Publication of "Souls of Black Folk." | W.E.B. DuBois |
| 1905 | Niagara Movement. | W.E.B. DuBois |
| 1909 | Founding of N.A.A.C.P | W.E.B. DuBois |
| 1910 | Wrote letters criticizing Booker T. Washington, resulting in loss of postal job. | H.H. Harrison |
| 1911 | Founded "Negro Society for Historical Research." | Arturo Alfonso Schomburg |
| 1912 | First Lt. Army | George S. Schuyler |
| 1913 | Spoke out at the historic "Paterson" silk strike. | H.H. Harrison |
| 1913 | Racial Integrity: A Plea for the establishment of a Chair of Negro History in our schools, colleges, etc. | Arturo Alfonso Schomburg |
| 1914 | Organized the "Radical Forum" a free-thought speakout. | H.H. Harrison |
| 1915 | Organized the "New Negro Manhood Movement." | H.H. Harrison |
| 1915 | Established the "Association for the Study of Negro Life and History." | Dr. Carter G. Woodson |
| 1916 | First Amenia Conference. | W.E.B. DuBois |
| 1916 | Started the Journal of Negro History. | Dr. Carter G. Woodson |
| 1917 | Founded the Liberty League and Voice. | H.H. Harrison |
| 1917 | Founded the Messenger | A. Philip Randolph |
| 1917 | Arrested for opposing Black Negro American entry in the WWI. | A. Philip Randolph |
| 1918 | Second Amenia Conference. | W.E.B. DuBois |
| 1920's | Studied under Arturo Schomburg and Dr. Willis Huggins. | John G. Jackson |
| 1921 | First Pan-African Conference. | W.E.B. DuBois |
| 1921 | Published "History of the Negro Church". | Dr. Carter G. Woodson |
| 1922 | Second Pan-African Conference. | W.E.B. DuBois |
| 1923 | Messenger staff, Pittsburg Courier. | George S. Schuyler |
| 1924 | Sabbatical leave with French Oriental Archaeological Society in Egypt and Sudan. | Alian Locke |
| 1925 | Jim Crow tour of Southern States. | George S. Schuyler |
| 1926 | Sold collection for $10,000 to New York Public Library Division of Negro History. | Arturo Alfonso Schomburg |
| 1926 | Developed Negro History Week. | Dr. Carter G. Woodson |
| 1927 | Third Pan-African Conference. | W.E.B. DuBois |
| 1927 | Wrote for the American Mercury | George S. Schuyler |
| 1928 | Promoted concept of "African Studies". | Alian Locke |
| 1929 | Formed Brotherhood of Sleeping Car Porters. | A. Philip Randolph |
| 1930 | Investigative reporter to Liberia. | George S. Schuyler |
| 1930's | Vigourous opponent to racism, picketing the White House. | Paul Robeson |
| 1930's | Refused to sing before segregated audiences. | Paul Robeson |
| 1930's | Started crusade against lynching. | Paul Robeson |
| 1930's | Urged Congress to outlaw Racial Laws in baseball. | Paul Robeson |
| 1930 - 1935 | Lectured at the Inger Sol Forum of the American Association for the Advancement of Atheism. | John G. Jackson |
| 1932 - 1972 | Lecturer/member of Rationalist Press American Association of London. | John G. Jackson |
| 1933 | Forced to testify before Congress about communist sympathies. | Langston Hughes |
| 1933 | The Miseducation of the Negro. | Dr. Carter G. Woodson |
| 1935 | Wrote for the American Rationalist Annual "Black Man Burden-Religion." | George S. Schuyler |
| 1936 | Co-director; Institute of Race Relations Swathmore College World View of Race". | Ralph Bunche |
| 1939 | A Guggenheim Fellowship. | Langston Hughes |
| 1940 | A Rosenwald Fellowship. | Langston Hughes |
| 1941 | Threatened to march on Washington. | A. Philip Randolph |
| 1944 | Carneige Corp; Survey of the Negro in American Consultant to American Dilemma . | Ralph Bunche |
| 1946 | Forced to appear before the House Committee on Un-American activities. | Paul Robeson |
| 1948 | Armistice; Between Israel and Arabs. | Ralph Bunche |
| 1948 | Led campaign banning segregation in the military. | A. Philip Randolph |
| 1949 | First Negro elected President of the American Association for Adult Education. | Alian Locke |
| 1949 | Riot at Peekskill. | Paul Robeson |
| 1950 | Nobel Peace Prize. | Ralph Bunche |
| 1953 | Secured a Phi Beta Kappa Charter at Howard University. | Alian Locke |
| 1961 | "Black and Conservative." | George S. Schuyler |
| 1961 | "Black America Begins to Doubt." | George S. Schuyler |
| 1963 | March on Washington | A. Philip Randolph |
| 1966 | Philip Randolph Institute. | A. Philip Randolph |
| 1967 | Consistent with his wishes, upon his death at his memorial they played "Do Not Sing
Til You Hear From Me". | Langston Hughes |
| 1984 | Guest speaker Convention of American Atheists "Black Atheists of the Harlem Renaissance." | John G. Jackson |