Complex sentence: Students came from all across Europe to witness Charcot's clinical demonstrations: among them--in 1885--was the 29-year old Sigmund Freud who translated Charcot's lectures into German and whose sympathetic deconstruction of the lectures on hysteria formed the foundations of psychoanalysis.
Split into simpler sentences: Students came from all across Europe to witness Charcot's clinical demonstrations: among them--in 1885--was the 29-year old Sigmund Freud who translated Charcot's lectures into German. Freud's sympathetic deconstruction of the lectures on hysteria formed the foundations of psychoanalysis.