1895 Graduated from Union College, Schenectady, NY
1899 Graduated with M.D. from College of Physicians and Surgeons of Columbia University
1899 Assistant to physician Dr. Henry Hum at Albany Medical College
1902 Traveled to Germany to study under Edinger and Wilhelm His
1904 Returned to US and joined the Department of Anatomy at John's Hopkins Medical School in Baltimore
1906 Held position at the Wistar Institute in Philadelphia
1907 Professor of Gross Anatomy at the University of Michigan
1914 Research Associate with the Department of Embryology at the Carnegie Institute of Washington
1917 Directorship of the Department of Embryology at the Carnegie Institute
Died July 27, 1948
Dr. George L. Streeter began his career in medicine originally wanting to specialize in clinical neurology, but in 1902, while studying under Edinger and Wilhelm His, his interest quickly turned to human and mammalian embryology. During his time after Germany and prior to his position at the Wistar Institute, Streeter joined the Department of Anatomy at Johns Hopkins and published his first Contributions to Embryology, discussing the development of the nervous system and the ear. His research interests were diverse, including the embryology of the nervous system, the blood vessels of the brain, the auditory apparatus, embryology of twinning, pathology of early embryos and the chronology of embryonic growth. Streeters life long contribution to the study of reproduction in humans, the growth rate of human embryos and of the nature of embryonic defects, were his greatest service to clinical obstetrics and gynecology. In addition, Streeter defined the 23 Carnegie Stages, which are currently used to categorize the developmental stages of an embryo. Streeter is probably most famous for his directorship of the Department of Embryology at the Carnegie Institute. It was during his directorship that the department became world famous and grew to possess the largest collection of human embryological material in the world. His high standards in research attracted a brilliant staff and visitors from around the world came to study and work under his guidance. Some of the most notable researchers he worked with were Hartman and Heuser, who made significant contributions to the embryology of the pig and rhesus monkey. He also contributed to and worked with Arthur Hertig and John Rock and their collection of early human embryos, which is now a part of the Centers collections.