New Zealander George Hudson proposed the modern idea of daylight saving in 1895. Germany and Austria-Hungary organized the first implementation, starting on 30 April 1916. Many countries have used it at various times since then, particularly since the energy crisis of the 1970s.
Medical Definition of DISABLE. : to deprive of a mental or physical capacity.
A mental or physical disadvantage, such as blindness or a missing leg, is a handicap: something that disables you in some way. Handicaps can also be imposed artificially to even out the odds in sporting events.