The document discusses the legal doctrine of strict liability as established in the landmark 1860 case Rylands v. Fletcher. The case involved a landowner who constructed a reservoir that flooded his neighbor's coal mine after water burst through abandoned mine shafts. Though there was no proof of negligence, the landowner was held liable for damages caused by the "non-natural" escape of water from his reservoir. This established the principle of strict liability - holding persons responsible for damages caused by inherently dangerous activities on their land, regardless of fault.