This article is an obituary for Calyampudi Radhakrishna Rao, a renowned statistician who passed away in 2023. The article highlights two early works by Rao, "Anthropometric Survey of the United Provinces, 1941: A Statistical Study" and "The Ancient Inhabitants of Jebel Moya," and discusses their relevance to modern data science. The first study analyzed anthropometric measurements of Indians living in Uttar Pradesh and Uttarakhand, providing detailed information and making it both replicable and reproducible. The second study focused on the remains found at the Jebel Moya archaeological site in Sudan, using statistical analysis to challenge previous interpretations about race. These examples demonstrate the importance of replicability, reproducibility, and incorporating data context in data science. [Extracted from the article]