Homeopathy
Who started it?
Homeopathy extends at least as far back as the Ancient Greeks, the modern "father of homeopathy" was the German physician Samuel Hahnemann, who began outlining his theories of "medical similars" in a series of articles and monographs in 1796.

How does it work?
Homeopathic remedies are "succussed," or shaken vigorously with each dilution to increase their vibratory field. They are thought to work by stimulating the body's own healing energy, rather like a tuning fork that sets disharmonious chords back on track. Homeopathic remedies consist of minute does of natural substances - mineral, plant or animal, that if given to healthy people in large does would cause the symptoms the patient is experiencing. The principle is similar to that of pharmaceutical vaccination, but vaccines are macromolecules that can induce unwanted side effects.