George Gey was an American cancer researcher best known for his role in the development of the first immortal human cell line, known as HeLa cells. Born on July 24, 1899, he worked at Johns Hopkins University and was dedicated to advancing medical research. His work with these cells, derived from Henrietta Lacks, revolutionized the field of cell biology and has been instrumental in numerous medical breakthroughs. Gey's contributions extended beyond HeLa cells; he also developed techniques for growing cells in culture, which have become standard in laboratories worldwide. His research has had a lasting impact on fields such as virology, genetics, and cancer treatment, making him a significant figure in medical history. Gey passed away on February 8, 1970.