Final answer:
Johann Friedrich Blumenbach published a classification system that divided humans into five races based on his studies of human skulls.
Step-by-step explanation:
Johann Friedrich Blumenbach, a German physician, zoologist, and anthropologist, made significant contributions to scientific literature. Blumenbach is well-known for his racial classification of humans, which he outlined after thorough studies of human skulls. Remarkably, he categorized humans into five distinct races. Although this typology is considered outdated and scientifically incorrect today, it was a notable publication in the history of anthropology and had a considerable influence at the time.