Historians have been unable to establish a concrete connection between any popular folk magic or witch traditions from before A.D. 1800 with modern organized witch movements. Most seem to have been inspired by the writings of Aleister Crowley (1875-1947) and Gerald Brosseau Gardner (1884-1964), who created for themselves new versions of witch rituals and organizations based on a loose interpretation of modern superstition and historical legacies. Many different people founded branches of witches in the 1960s and 1970s, with many new publications and handbooks coming out in the last ten years. While some of these diverse witch circles use historical research to establish some of their ideas, most seem to rely on imagination, fantasy and a robust eclecticism.