This document lists 20 famous historical figures and details their neurological disorders or disabilities, including: - Agatha Christie (mystery writer) - Neurological Disorders/Epilepsy - Ludwig van Beethoven (composer) - Hearing Impaired/Deaf - Several other notable figures and their disabilities such as blindness, deafness, dyslexia, paralysis, amputation, and autism. The document provides brief biographical information about each person alongside their specific neurological condition or disability.