A sports historian plays a crucial role in preserving and interpreting the history of sports. They research, analyze, and write about various aspects of sports, including key events, athlete careers, and the social and cultural impacts of sports on society. Their work helps to document the evolution of sports, educate the public and preserve the legacies of athletes and teams. Sports historians often contribute to academic literature, museums, and media, enriching our understanding of the significance and development of sports over time.