Answer:
Jean Toomer's accomplishments:
1. Writing the influential work "Cane," which combined poetry and prose to explore the African American experience.
2. Contributing to the Harlem Renaissance, a cultural movement celebrating African American art and literature.
3. Challenging traditional literary conventions through his innovative writing style.
4. Exploring themes of racial identity, spirituality, and social dynamics in his work.
5. Leaving a lasting impact on modernist literature and African American literary traditions.