Carl Woese was a renowned American microbiologist known for revolutionizing the field of biology. Born in 1928, he made groundbreaking discoveries in molecular biology and microbial taxonomy. Woese's work on the genetic code and the classification of life forms led to the discovery of the third domain of life, Archaea. His discovery reshaped our understanding of evolutionary history. Woese's contributions have had a profound impact on the scientific community and continue to influence research in microbiology and evolutionary biology.