In 1874, the risk of liability for cargo carried by the insured ship was added to the insurance cover provided by a P&I club. Cargo value had risen and cargo underwriters, encouraged by UK courts, filed more claims to recover their losses from shipowners. These claims were not covered by the current marine insurance class. After 1874, many clubs added a marine indemnity class to respond to these new claims. This class was later merged with the marine insurance class reserved for the original protection risks and the distinction between the two classes virtually disappeared.