some hundreds of years of experience we think that we have learned here in Oxford how to teach what is known. But now with the undeniable upsurge of scientific research, we cannot continue to rely on the mere fact that we have learned how to teach what is known. We must learn to teach the best attitude to what is not yet known. This also may take centuries to acquire but we cannot escape this new challenge, nor do we want to." While at Oxford, Sherrington kept hundreds of microscope slides in a specially constructed box labelled "Sir Charles Sherrington's Histology Demonstration Slides". As well as histology demonstration slides, the box contains slides which may be related to original breakthroughs such as cortical localization in the brain; slides from contemporaries such as Angelo Ruffini and Gustav Fritsch; and slides from colleagues at Oxford such as John Burdon-Sanderson – the first Waynflete Chair of Physiology – and Derek Denny-Brown, who worked with Sherrington at Oxford (1924–1928)). Sherrington's teachings at Oxford were interrupted by World War I. When the war started, it left his classes with only nine students. During the war, he laboured at a shell factory to support the war and to study fatigue in general, but specifically industrial fatigue. His weekday work hours were from 7:30am to 8:30pm; and from 7:30am to 6:00pm on the weekends. In March 1916, Sherrington fought for women to be admitted to the medical school at Oxford. He lived at 9 Chadlington Road in north Oxford from 1916 to 1934, and on 28 April 2022 an Oxfordshire blue plaque in his honour was unveiled on this house. Retirement Charles Sherrington retired from Oxford in the year of 1936. He then moved to his boyhood town of Ipswich, where he built a house. There, he kept up a large correspondence with pupils and others from around the world. He also continued to work on his poetic, historical, and philosophical interests. From 1944 until his death he was President of the Ipswich Museum, on the committee he had previously served. Sherrington's mental faculties were crystal clear up to the time of his sudden death, which was caused by a sudden heart failure at age 94. His bodily health, however, did suffer in old age. Arthritis was a major burden. Speaking of his condition, Sherrington said "old age isn't pleasant[,] one can't do things for oneself." The