<human>:  When did the philosophy of Theosophy start?
<bot>: Theosophy was founded by Helena Blavatsky in 1875. She claimed to be a Russian noblewoman who had been initiated into a secret society in India. Theosophy is a collection of ideas about spirituality and the nature of the universe. It is based on the belief that there is a universal spirit, called the "Great Spirit", which permeates everything. Theosophy also believes that all religions and philosophies are aspects of the same universal truth.