Dementia (from L.demens), commonly referred to as insanity or madness, is usually associated with a progressive loss or weakening of self control, thought and/or reason. In its more serious forms, dementia is often mistakenly referred to as mental imbecility or even idiocy.
... further south than anyone before him
John Hanning Speke, (1827-1864), discovered Lake Victoria
Henry Morton Stanley, (1841-1904), found back Livingstone; lat ...