Psychologists born on April 21

Take a focused look at the psychologists born on April 21. Dive into curated bios, achievements, and cultural milestones verified by our editors.

• 1909 Rollo May

  Rollo May was an influential American existential psychologist, best known for introducing existentialist ideas into American psychology and for his work on understanding anxiety and human existence. His writings helped shape discussions around psychotherapy, creativity, and the challenges of modern life. [bio]