Rylands v Fletcher
House of Lords, England(1868) LR 3 HL 330Bench: Lord Cairns LC, Lord Cranworth
A person who brings onto their land and keeps there anything likely to do mischief if it escapes must keep it at their peril, and if they fail to do so, they are prima facie answerable for all the natural consequences of its escape. This applies to non-natural uses of land.