Question: What is the birthdate of this American writer and political activist who became an early leader of the Black Panther Party and for whom Maxwell Geismar wrote the introduction to his "Soul on Ice"?
Sentence (from "Maxwell Geismar"): Maxwell Geismar (August 1, 1909 – July 1979) was an American author who wrote the introduction to Eldridge Cleaver's "Soul on Ice".
Relevant evidence: Yes