Who invented the life preserver?

Answer 1

The most ancient examples of primitive lifejackets can be traced back to inflated bladders of animal skins or hollow, sealed gourds, for support when crossing deeper streams and rivers. The modern lifejacket is generally credited to one Captain Ward, a Royal National Lifeboat Institution inspector in the United Kingdom, who, in 1854, created a cork vest to be worn by lifeboat crews for both weather protection and buoyancy.