1763-- R. Tredwell was issued a patent for a coil spring (British patent No. 792)
1804-- Obadiah Elliot of London invented a leaf spring
1897-- A. Gimmig invented the first shock absorber
1908-- M. Houdaille of France designed the first workable hydraulic shock absorber
1933-- Firestone developed the first practical air suspension for an experimental car: Stout-Scarab
1960-- MacPherson, a GM engineer, designed the MacPherson strut