Chapter 2 traces the historical development of mass tort litigation from the 1970s through the 1990s, documenting plaintiffs attorneys initial unsuccessful attempts in the 1990s to extend public nuisance theory to mass tort products and marketing litigation. During this initial foray into public nuisance theory, courts instead universally defaulted to a narrow view of nuisance grounded in property law. In cases involving tobacoo, asbestos, lead paint, and gun litigation courts declined to accept plaintiffs public nusiance claims, refusing invitations to expand a claim for public nuisance beyond its grounding in real property concepts. Courts contended that these mass tort harms sounded in causes of action for traditional products liability, not public nuisance, and that public nuisance law had never been applied to products cases. Courts noted the deleterious effects of accepting an expanded concept of public nuisance, which would allow any plaintiff to describe a harm from a lawful product as producing a public nuisance. Such a concept would invite unlimited liability for manufacturers of legal products.