This is a condensed list of important dates when obsolete or potentially harmful material stopped being used by home builders:
Lead-based paint: 1978
Lead in solder (copper pipe): 1988
Lead Pipes: 1940
Galvanized steel water pipe: 1950 Approx
Polybutylene water pipe: 2000
Asbestos (in a variety of materials): 1985
Aluminum Wiring: 1965-1979
Ungrounded Wiring: 1965
Knob & Tube Wiring: 1955
