Who was the first oncologist?

The title of the first oncologist is often attributed to Dr. Sidney Farber, an American pathologist who is considered a pioneer in the field of cancer treatment. In the 1940s, he developed the first successful chemotherapy agents for treating leukemia in children. His work laid the foundation for modern oncology and the development of various cancer treatments. While the field has evolved significantly since then, Farber's contributions were crucial in establishing oncology as a distinct medical specialty.