This article argues that from a territorial perspective a certain coherence and continuity can be identified in the Estonian cultural-theoretical tradition – a discursive body based on common sources of influence and similar fundamental attitudes. We understand Estonian theory as a local episteme – a territorialized web of epistemological associations and rules for making sense of the world, which favours some premises while discouraging others. The article focuses on the older layers of Estonian theory, discussing the work of Karl Ernst (...) von Baer, Victor Hehn, Gustav Teichmüller, Jakob von Uexküll, Hermann Keyserling, Johannes Gabriel Granö, Juri Lotman a.o. We examine the philosophical foundations of Estonian theory as well as its main epistemic facets. The article concludes that the conceptualization of Estonian theory could contribute to a general transformation of contemporary (cultural) theory, a redefining of the relations between the centre and the peripheries. (shrink)