In the early 1900s, Dr. Alois Alzheimer discovered the disease that bears his name today. Alzheimer had observed an unusual disease in one of his patients, a woman in her 50s who had memory loss and was plagued by disorientation and hallucinations, according to Alzheimer's Disease International. She succumbed to the obscure brain disease at the age of 55. A post-mortem revealed brain abnormalities previously only found in elderly people. Today, “the pathological diagnosis of Alzheimer’s disease is still generally based on the same investigative methods used in 1906,” Alzheimer’s Disease International noted. In other words, if it hadn’t been for the good doctor, researchers and scientists of today would have to begin at square one. Though we owe him a great debt of gratitude, many caregivers and patients might be unaware that Alzheimer’s disease, the most common form of dementia, is named for Dr. Alzheimer. While his contribution to the world may be unknown by the general public, few people are aware of the contribution of Dr. Solomon Carter Fuller to Alzheimer's research.