Facts on Deaths from cancer in Massachusetts

B. F. Skinner

Was an American psychologist, philosopher, scientists and poet known for inventing the operant condition chamber and for his own experimental analysis of behavior.

10 facts about B. F. Skinner

Anthony Quinn

Was a popular Hollywood actor who hailed from Mexico.

10 facts about Anthony Quinn

Henrietta Swan Leavitt

An American female astronomer.

10 facts about Henrietta Swan Leavitt