[Santiago Ramón y Cajal: Sketching the Foundations of Neuroanatomy]

Santiago Ramón y Cajal (1852-1934) is known as a giant who laid the foundation of today's neuroscience and neuroanatomy. Born in Spain, a region that was recognized as a frontier in academic research, he continued to produce numerous new findings throughout his life. It is impossible to cover all his achievements in this brief article. However, it is truly remarkable to recognize that many of the cells and neural pathways we now regard as common knowledge, without deep consideration, were elucidated in Cajal's work. This brief article is a tribute to Cajal and Dr. Hajime Mannen, a master of neuroanatomy in Japan, who was captivated by his work.