The discovery of radioactivity by Henri Becquerel in 1896, followed by the work of Marie and Pierre Curie, opened new possibilities in medicine and nuclear physics
The discovery of the structure of DNA by James Watson and Francis Crick in 1953 transformed our understanding of genetics and heredity
The discovery of penicillin by Alexander Fleming in 1928 revolutionized modern medicine and led to the development of antibiotics
Columbus's discovery of the Americas occurred on 12 October 1492
Christopher Columbus is usually credited with the discovery of America
