Friedrich Anton Mesmer, born in Germany in 1734, was a physician who developed the theory of animal magnetism, also known as mesmerism, in the 18th century. Mesmerism was an influential practice in the field of medicine and psychology during this time period. Synonyms for Friedrich Anton Mesmer include mesmerist, animal magnetist, and father of hypnosis. Although some of his theories and practices have been discredited over time, Mesmer remains an important figure in the history of hypnosis and alternative medicine. His work paved the way for further exploration and understanding of the mind-body connection.