From 1913 until 1922, Bogdanov immersed himself in the writing of a lengthy philosophical treatise of original ideas, Tectology: Universal Organization Science. Tectology anticipated many basic ideas of systems analysis, later explored by cybernetics. In Tectology, Bogdanov proposed to unify all social, biological, and physical sciences by considering them as systems of relationships and by seeking the organizational principles that underlie all systems.