Definition of Alzheimer's. 1  Alzheimer's disease is a progressive, degenerative disorder that attacks the brain's nerve cells, or neurons, resulting in loss of memory, thinking and language skills, and behavioral changes. Origin of the term Alzheimer's disease dates back to 1906 when Dr. Alois Alzheimer, a German physician, presented a case history before a medical meeting of a 51-year-old woman who suffered from a rare brain disorder. 2  A brain autopsy identified the plaques and tangles that today characterize Alzheimer's disease.
Since the release of the first novel, Harry Potter and the Philosopher's Stone, on 30 June 1997, the books have gained immense popularity, critical acclaim and commercial success worldwide.
Hereâs what to look out for: Harry Potter and the Philosopher's Stone. âHardcover first edition first printings of this 1997 book have become the âHoly Grailâ for Potter collectorsâ¦Only 500 were published and 300 went to libraries. The main characteristics of a 1997 first edition first issue are a print line that reads 10 9 8 7 6 5 4 3 2 1 and the crediting of Joanne Rowling not JK.