Louis Agassiz was a Swiss scientist born on May 28, 1807. He was a prominent naturalist and geologist known for his research on glaciers and their impact on the Earth's landscape. Agassiz made significant contributions to the study of fish and fossils, and he was a strong advocate for scientific education. He immigrated to the United States, where he became a professor at Harvard University. Louis Agassiz's work has had a lasting impact on the fields of geology and biology, and he is remembered as a pioneering scientist. He passed away on December 14, 1873.