Who Invented Stem Cell Research?

Stem Cell research was started by Dr. Ernest A. McCulloch and Dr. James E. Till in the 1960s. Ernest Armstrong McCulloch was born in 1926 and attended the university of Toronto and graduated a Cellular Biologist. James Edgar Till was born 1931 and attended the same university and graduated Biophysicist. Till and McCulloch chose to work together at the University of Toronto. Dr. Armstong’s maturity coupled with the younger phyicist’s zealous and thorough nature, made them a dynamic team. In the early 1960’s, McCullough and Till started a series of experiments that involved injecting bone marrow cells into mice. After they observed small raised lumps that grew on the spleens of the mice, Till and McCulloch identified the lumps as ‘spleen colonies, and found that each lump arose from a single marrow cell: stem cell. For more information see here: