Neoplatonist religion Theosophy https://en.wikipedia.org/wiki/Category:Theosophy https://en.wikipedia.org/wiki/Theosophy https://www.wikidata.org/wiki/Q27657108 A religion established in the United States during the late nineteenth century. It was founded primarily by the Russian immigrant Helena Blavatsky and draws its teachings predominantly from Blavatsky's writings.