Nicolas Steno

Nicolas Steno was a 17th-century scientist and bishop who made important advances in geology and anatomy. He is best known for his work on how rocks form, discovering that layers of sedimentary rock are laid down over time and can reveal Earth's history. Steno also studied how muscles and bones connect, contributing to anatomy. His principles helped establish that the Earth's features developed gradually through natural processes, laying a foundation for modern geology. Despite his religious role, his scientific methods emphasized careful observation and evidence-based reasoning.