Stephen jay gould by kathy chapman

Stephen Jay Gould

  • Stephen was born

  • Stephen discovered the theory of punctuated equilibrium

    Stephen discovered the theory of punctuated equilibrium
    Which he developed with Niles Eldredge. It states that most evolution is marked by long periods of evolutionary stability.(the day and month are not correct.)
  • cancer

    cancer
    Gould was diagnosed with peritoneal mesothelioma, a deadly form of cancer.
  • Stephen pasted away