What are 5 accomplishments by David Harold Blackwell?

David Harold Blackwell was a pioneering statistician and mathematician known for several significant accomplishments. He was the first African American to be elected to the National Academy of Sciences and made substantial contributions to Bayesian statistics and game theory. Blackwell also developed the Blackwell theorem and the Blackwell–Rao theorem, which are fundamental in statistics. Additionally, he served as a professor at the University of California, Berkeley, influencing future generations of mathematicians and statisticians.